Mosaic Mennonites

Missional - Intercultural - Formational

Ambassadors 2025

A Ministry of Presence: Ambassadors We’re Learning from the Summer Part IV 

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by Javier Márquez

Editor’s Note: This summer, 14 young adult Ambassadors are serving in congregations and ministries across Mosaic Conference. This article highlights four of these Ambassadors, and you can read the first three articles here. 

Brandon Chiu became an Ambassador at his congregation, Philadelphia Praise Center, to serve his community more deeply and live out his faith more intentionally. This summer has been a call to embody compassion, reconciliation, and the radical presence of God in the ordinary rhythms of life. 

Chiu has been leading a summer camp for local youth under the theme “Love Your Neighbors,” organizing lessons and activities that reflect Christ’s love in accessible, joyful ways. Whether through storytelling, games, or neighborhood cleanups, Chiu is creating spaces of belonging and peace. 

“I believe I am representing the Kingdom characteristics of compassion and reconciliation,” he reflects. “It’s about showing up for people—especially those who are often overlooked—and offering joy, peace, and presence. Even something small, like sweeping a sidewalk or listening to a child, can reveal the heart of God’s Kingdom.” 

In partnership with SEAMAAC and other local organizations, Chiu is supporting efforts in environmental stewardship, neighborhood care, and cultural celebration—including the planning of an Indonesian night market. 

He invites prayers for the summer camp; that the kids would feel safe, loved, and encouraged, and that God would work through all the relationships being formed this summer. 

Demarcus Daniels is a college football player who grew up coming to the Midian Leadership Project (Charleston, WV) ’s Safe Haven, and had served in summer youth work programs with Midian in the past.   

Daniels began his time as an Ambassador by joining Midian staff member Turan Rush at the Mosaic Oasis gathering, where they had the experience of worshipping in different languages from around the globe. Daniels spent the summer coaching football and mentoring players at Midian. 

“We are trying to give these guys a step up on the competition, but even more, I want to be a part of their journey and help them however I can,” Daniels shares about his motivation for serving as an Ambassador. “I didn’t have a lot of people on my journey and we want them to have better than what we had,”  

“I’ve faced a lot of adversity, and I had to look for understanding. Over time the verse John 13:7 has spoken to me: ‘Jesus replied, ‘You do not realize now what I am doing, but later you will understand.’” 

“I believe God’s got a plan for us,” Daniels says.  

Fabio Satro, age 18, brought fresh energy and compassion as a Mosaic Conference’s 2025 Summer Ambassador. Serving with International Worship Church (San Gabriel, CA), Satro sought to help his congregation become more welcoming to the public—especially immigrants and young people. 

His work included documenting youth group activities and special events at the church to share on social media, helping extend the church’s reach beyond its walls. “Spreading joy and being open to all” is how Fabio describes the kingdom values he sought to live out through his service. 

Throughout the summer, Fabio deepened his understanding of the needs within his community. “I’ve learned that a lot of people are in critical need of God’s presence and assistance in their life because of all of the hardships they are going through,” he reflects. He is also keenly aware that many people “weren’t born with as much privilege that humans are supposed to get,” a realization that fuels his ongoing commitment to serving with empathy and openness. 

This summer, 22-year-old Ivonne Hartono was a Mosaic Conference Ambassador at her congregation, Jemaat Kristen Indonesia Anugerah (JKIA) (Sierra Madre, CA). Hartono brought determination and a willingness to learn. 

“My church does not have a dynamic website, and I want to make one,” Ivonne explained. She focused on both building and researching web development—a new skill for her. 

During her summer service, Hartono learned the importance of perserverance. “There are a lot of trials, but we should not give up,” she reflected.  

She prays that JKIA will “continue with their service and bring joy to the community,” carrying forward the mission that inspired her own work. 

Javier Márquez

Javier Márquez is Associate for Communication and Community Engagement for Colombia. He is an Anabaptist Colombian pacifist and poet. He is based in Bogota, Colombia.

Mosaic values two-way communication and encourages our constituents to respond with feedback, questions, or encouragement. To share your thoughts or send a message to the author(s), contact Javier at jmarquez@mosaicmennonites.org.      

Bringing Healing and Hope: Ambassadors We’re Learning from the Summer Part III

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by Javier Márquez

Editor’s Note: This summer, 14 young adult Ambassadors are serving in congregations and ministries across Mosaic Conference. This article highlights four of these Ambassadors, and in the coming weeks, you will be introduced to the other Ambassadors. Read the first two articles here. 

Elizabeth Martinez, a 25-year-old Mosaic Conference Ambassador, is discovering new dimensions of leadership and spiritual growth as she serves at Homestead (FL) Mennonite. 

“I wanted to be more active in my role as a follower of Christ,” Martinez shares. “That desire to serve led me to take this journey with the Lord, stepping out of my comfort zone to grow personally and spiritually.” 

This summer, she is using her creativity and compassion to organize guided painting workshops that include fellowship, reflection, and healing through artistic expression, with Christ at the center. She is also supporting the church’s prayer services. 

“Healing, humility, and hope and values of the Kingdom of God expressed in these events,” she explained. “Both painting and prayer invite us to look inward and allow the Holy Spirit to lead our worship.” 

“I’ve learned it’s okay to rely on God when I don’t have all the answers, and I’m learning to have patience with myself and to trust in the abilities God has given me,” Martinez reflects.  

Though moments of self-doubt and lack of resources have tested her, she remains rooted in her faith. “Even when I feel overwhelmed, I know I’m not alone. I understand now, in a deeper way, the struggles faced by the prophets and the importance of taking refuge in God’s wisdom.” 

Martinez asks the Mosaic community to join her in prayer for her congregation: “Homestead is a small, aging congregation. I’ve been called to encourage my local community to seek the Lord. Please pray that the Lord would have mercy on us, and that we would see new life and growth. Pray especially for the Guided Painting Workshop—that we would have a strong turnout and that God would be glorified.” 

At just 19 years old, Lincoln Matonti is making an impact in his community as a Mosaic Conference Ambassador. Motivated by a sense of calling and supported by Redemption Church of Bristol (PA), Matonti responds to observed needs with creativity, joy, and faith-filled leadership. 

Matonti is collaborating with his church to create meaningful connections with neighbors through a unique film club outreach. This gathering invites people into thoughtful conversations about faith, community, and the role of the church. He is also helping renovate the basement space beneath the church building, transforming it into a welcoming environment for children. 

“I’ve learned a lot about the needs around me,” Matonti reflects. “I know my passion for serving the community comes from God and not myself.” 

Matonti invites the Mosaic community to join him in prayer for the people of Bristol: “Pray that their hearts would open as they hear the good news and that they would be moved to seek God.” 

Josiah Marrero became an Ambassador to build deeper relationships with the children in his community while introducing — or strengthening — their understanding of God. Marrero serves at the Crossroads Community Center (Philadelphia, PA) in the Fairhill neighborhood, where bikes are more than a pastime; they’re a signal that summer has arrived. 

“I am using my love for bikes to connect with the youth,” he shares. “I want to invite them to experience God’s love and show them God will never turn them away.” 

With only one bike available for about ten children to share, Marrero finds himself modeling patience while encouraging the children to do the same. Whether riding bikes or playing basketball, every moment becomes an opportunity to grow in grace. 

“The youth are looking for someone to guide them, whether they realize it or not. I know, because I was them not that long ago,” he says. His experience as an Ambassador is also motivating him to spend more time in Scripture and live out the lessons he’s learning. 

Marrero invites the community to join him in prayer for North Philly — for ongoing donations to support the work at Crossroads Community Center, for the protection of the youth and their families, for their neighbors beyond Fairhill, and for the provision of another bike to keep spreading the good news of Jesus Christ. 

A personal recommendation nudged Myron Tucker toward becoming an Ambassador. “Mr. Joeven told me about the opportunity and that I’d be a great fit because of who I am and how I carry myself,” Tucker recalls. That invitation was an affirmation of the leadership, passion, and heart for service Tucker was already showing in his community, College Hill (FL) Mennonite.  

Myron has experienced spiritual growth, formed meaningful connections, and embraced the joy of representing his congregation and culture. “What I’ve enjoyed most is being able to connect with people who share similar passions but come from different backgrounds and cultures. It’s helped me appreciate my own identity even more,” he shares. 

Tucker sees this summer as an opportunity to strengthen his sense of calling. “I want to be a light to other young people. Being an Ambassador helps me understand how to do that with purpose and direction.” 

Ambassadors Hold Second Online Gathering 

On July 11, the Mosaic Summer Ambassadors gathered online for connection, reflection, and encouragement as participants paused to share how God has been at work through their service. 

The meeting began with a warm welcome and check-in led by Javier Márquez, who expressed gratitude for the Ambassadors’ commitment and presence in diverse communities. “We’ve heard stories of your courage and learning. This space is for reconnecting and encouraging one another as we continue,” he said. 

After an opening prayer, each Ambassador shared their current place of service and one important moment in recent weeks—whether joyful, challenging, or transformative. The time encouraged vulnerability as Ambassadors heard echoes of their own journeys in each other’s stories. 

The devotional, led by Hendy Matahelemual, centered on Galatians 6:9 and reminded participants not to grow weary in doing good. The reflection emphasized that small acts of kindness and service matter and carry eternal weight. Ambassadors shared moments that had challenged and shaped them spiritually and emotionally during their time of service. 

In a group dialogue on learning and growth, the Ambassadors explored what they’ve discovered about themselves, their faith, and their evolving role in their communities and congregations. It was a powerful exchange filled with insight and honesty. 

Throughout the meeting, the Mosaic Conference leadership felt renewed excitement and gratitude for this program. It is a deep joy to know that each Ambassador is not only serving with joy, but also becoming a spark for meaningful conversations and transformation in the places where they’ve been sent. 

The gathering concluded with final announcements and a prayer of blessing. Our Ambassadors continue their journey grounded in faith, full of purpose, and surrounded by a community that believes in them. 

Javier Márquez

Javier Márquez is Associate for Communication and Community Engagement for Colombia. He is an Anabaptist Colombian pacifist and poet. He is based in Bogota, Colombia.

Mosaic values two-way communication and encourages our constituents to respond with feedback, questions, or encouragement. To share your thoughts or send a message to the author(s), contact Javier at jmarquez@mosaicmennonites.org.      

Serving with Purpose and Voice: Ambassadors We’re Learning from the Summer Part II

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by Javier Márquez

Editor’s Note: This summer, 14 young adult Ambassadors are serving in congregations and ministries across Mosaic Conference. This article highlights three of these Ambassadors, and in the coming weeks, you will be introduced to the other Ambassadors. Read the first article here. 

Brendan Sagastume, a 20-year-old Mosaic Conference Ambassador, views this summer as an opportunity to deepen his calling and continue growing as a leader in service to others. After a meaningful experience last year as an Ambassador for his congregation and the Mosaic Conference staff, Sagastume was inspired to become an Ambassador again, this time with Healthy Niños Honduras. 

His responsibilities include coordinating service teams coming from the U.S. to Honduras, processing donations, and helping with communications.  

“I hope to represent the Kingdom values of compassion and service,” Sagastume says. “Through this work, I hope to reflect Christ’s love in practical and relational ways.” 

Sagastume is learning about the importance of flexibility and openness. “Serving often means being ready to help in ways I didn’t expect,” he explains. “I’ve seen how ministry happens not just through programs, but through everyday conversations and acts of kindness.” These insights have drawn him closer to God, teaching him to rely on God’s strength and not his own strength. 

He invites Mosaic Conference to pray for strength, wisdom, deepened faith, and blessings for all with whom he is working.  

Caitlyn Weber, a 23-year-old Mosaic Conference Ambassador, is embracing the legacy of her spiritual ancestors by serving at the Mennonite Heritage Center in Harleysville, Pennsylvania.  

“I was motivated by a desire to be involved in my local community and local congregations,” Weber shared. “Working at the Heritage Center expands my understanding of what it means to be part of a church community and how we carry the legacy of our spiritual ancestors when navigating our beliefs and the world today.” 

Weber’s role includes generating content for social media to extend the reach of the Heritage Center. She draws from artifacts, photographs, individual narratives, and congregational histories to develop stories she hopes will help today’s generations grow in understanding and faith. 

“My work this summer will reflect peace and truth,” she says. “Studying the lives of those who came before us in the faith creates opportunities for understanding and living peace through their examples.” 

She is already recognizing ways being an Ambassador has helped her to grow. “I’ve learned how to navigate museum and archival collections, and I’m learning how to reflect the experiences of others through writing, while collaborating closely with those around me.” 

For Matthias Brockington, a 20-year-old Ambassador with Mosaic Conference, ministry is a calling deeply rooted in his growing relationship with Jesus. This summer, he’s stepping faithfully into that calling as a pastoral intern at Experience Christian Church (Exton, PA), partnering with Mosaic to grow in leadership, ministry, and community outreach. 

“As my relationship with the Lord has grown, I’ve realized God has given me a gift of speaking.” Brockington shares. As an Ambassador, he is exploring the craft of sermon writing, working with the youth, and developing skills to build and lead community.  

“I believe the Lord has spoken a shepherd spirit over my life,” Brockington says with conviction. He sees his ability to connect with people as a gift to reach people that may not know Jesus’ love. 

One of the most important lessons he’s learned as an Ambassador is that young people are not walking this faith journey alone. 

Brockington invites the Mosaic community to join him in prayer for the youth he’ll be leading this summer: “Pray that the Spirit of God moves in ways that are tangible for the children.” 

Javier Márquez

Javier Márquez is Associate for Communication and Community Engagement for Colombia. He is an Anabaptist Colombian pacifist and poet. He is based in Bogota, Colombia.

Mosaic values two-way communication and encourages our constituents to respond with feedback, questions, or encouragement. To share your thoughts or send a message to the author, contact Javier at jmarquez@mosaicmennonites.org. 

Serving with a Heart for God’s Kingdom: Ambassadors We’re Learning from the Summer Part I

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by Javier Márquez

Editor’s Note: This summer, 14 young adult Ambassadors are serving in congregations and ministries across Mosaic Conference. This article highlights three of these Ambassadors, and in the coming weeks, you will be introduced to the other Ambassadors.   

This summer, George Chile, 19 years old, a participant in the Mosaic Mennonite Conference Ambassadors, is dedicating time to serve God and his congregation, LA (CA) Faith Chapel with a heart full of purpose and passion.

“I want to make an impact guiding youth and leading a movement for Jesus,” he shares. 

As an Ambassador, Chile is serving in various ministries within his congregation, including working in the congregation’s labor department with church equipment, and assisting at Samaritan home—a housing project for unhoused individuals. He is also stepping in wherever else he is needed, demonstrating flexibility and willingness to serve. 

One of the most meaningful lessons he’s learned this summer is the value of offering himself fully to God. “Time and energy are nothing compared to the love God has for you, and it is worth giving to God,” he reflects.

Through his dedication and heartfelt service, Chile is growing in faith but helping to bring the presence of the Kingdom of Heaven into every act of service. 

This summer, Marciella Shallomita, a 22-year-old recent college graduate, is serving God by walking alongside the youth of her congregation, Nations Worship Center (Philadelphia, PA). As an Ambassador, Shallomita is combining her organizational gifts and heart for ministry to make a lasting impact. 

“Being an Ambassador is a good way to help my church in behind-the-scenes ministry, along with the regular ministry that I’ve previously and will continue to help with,” she shared. 

As an Ambassador she will coordinate youth service projects and organize a youth retreat. She hopes to strengthen the spiritual and communal life of the church’s younger generation. 

Shallomita’s approach to leadership reflects the values of servant leadership and fellowship. “I will serve together with the youth to help the congregation and broader community. The youth will be able to understand the true meaning of a church as fellowship with others, as Jesus intended.” 

“So far, I’ve learned administrative work and communications—planning and coordinating with the youth, retreat center, and other leaders in the church,” she said. 

Shallomita asks the Mosaic community to join her in prayer for the youth she is walking with this summer: “Please pray that God will help them understand and build a personal relationship with Jesus. Through the service and fellowship they’ll participate in this summer, pray that they can be more on fire for God.” 

Hensley Ducasse, a 24-year-old participant in the Ambassador Program, is serving his congregation, Homestead (FL) Mennonite and community with compassion, leadership, and vision. 

“My passion for Jesus Christ motivated me to become an Ambassador,” Ducasse shared. 

One of his bold goals for the summer is to open a food bank in the local community, to provide nourishment to those in need and serve as an invitation to connect with the church and experience God’s love. Ducasse is also planning to host sporting and gaming events for children and young adults—creating spaces of fun, community, and spiritual growth. 

“I’ve learned how to lead by listening and how to lead by example,” he reflects.  

Ducasse extends an open invitation to the Mosaic community: “I am taking prayer requests from anyone in need.” 

Ambassadors Gather for First Meeting

Many of the Ambassadors who gathered on Zoom for the first formation meeting of the summer.

On June 5, the 2025 cohort of Mosaic Conference’s Ambassadors gathered for the first time to officially launch their summer journey of service and leadership. This program offers young adults (ages 18–24) practical ministry experience in their local communities, helping them grow in their calling and commitment to God’s Kingdom. 

Led by Javier Márquez and Danilo Sánchez, the meeting began with greetings and team introductions, followed by a time of prayer and mutual encouragement. The devotional, based on 1 Timothy 4:12, reminded participants that youth is not a limitation but a calling to be an example in word, love, faith, and action. The reflection encouraged Ambassadors to live out their service with integrity, sensitivity, and courage—trusting that even small acts can reveal God’s Kingdom. 

One of the most enriching parts of the gathering was a group dialogue, where the young adults shared their motivations, hopes, fears, and dreams for the summer. Hearing one another helped build connection, empathy, and the assurance that they are not alone on this journey. It was a meaningful time of vulnerability, hope, and shared vision. 

The meeting closed with a sending prayer, commissioning the group into a season of growth, service, and transformation. We encourage each Ambassador to give their best, trusting that God will guide and use them powerfully to impact their communities! 

Javier Márquez

Javier Márquez is Associate for Communication and Community Engagement for Colombia. He is an Anabaptist Colombian pacifist and poet. He is based in Bogota, Colombia.

Mosaic values two-way communication and encourages our constituents to respond with feedback, questions, or encouragement. To share your thoughts or send a message to the author, contact Javier at jmarquez@mosaicmennonites.org.