Editor’s Note: This summer, 16 young adult Ambassadors are serving in congregations and ministries across Mosaic Conference. This article highlights four of them. In the coming weeks, you’ll be introduced to the remaining Ambassadors. Read Part I here.
The 2026 Mosaic Conference Summer Ambassadors have spent been engaged in their work for several weeks now. They gather monthly in a cohort to learn, pray, and reflect together on their experiences, and they are receiving site visits from Mosaic staff members. Below, four more Ambassadors introduce themselves:

Karen Walojo, International Worship Church (San Gabriel, CA)
“I became an Ambassador because I want to contribute more in my congregation and learn from other people’s experiences. I will be leading and teaching the preteens in my church to develop their belief in Christ. I hope to help them become more involved in their congregation and guide them closer to God.”
School: East Los Angeles College
Interests: I enjoy helping foster growth in children, both academically and spiritually. I want to become a pediatric nurse.
Hobbies: I have a pet cockatiel named Lemon. I play piano and I’m learning the bass guitar.

Josiah Yoder, Philadelphia (PA) Praise Center
“The Lord opened a door for me to be here, halfway across the country, in a surprising way with many different things aligning. I wanted to be able to serve the Church in a unique way and to invite church leaders to help me become a stronger man of faith and a leader within the church. I hope to hear many stories and testimonies, join a small group, try many new foods, learn about cultures I am unfamiliar with, serve wherever the Lord leads, and grow within a new community as well as with Christ.”
Home Congregation: College Mennonite (Goshen, IN)
School: Ball State University
Interests: Film, videography, photography, theology, history, and hearing different perspectives. My favorite movies are The Lord of the Rings series and I would love to live in New Zealand in later life because of the beautiful landscape.

Rosita Mojica, Wiwa Church (Sierra Nevada de Santa Marta, Colombia)
“As a mother and church leader, I am passionate about helping the next generation grow in both their cultural identity and their faith. This summer I am welcoming children from the community to teach them the Damana language, one of the most valuable expressions of my people’s identity. Through these gatherings the children experience belonging and learn to value the cultural richness inherited from their elders. I also share biblical teaching with them, creating a space where faith and Indigenous identity mutually enrich one another.
I became an Ambassador because I want to strengthen my leadership skills and gain tools to serve my community. I hope to learn from other young leaders, contribute to initiatives that support the spiritual and cultural development of Indigenous children and families, and serve God through the work I do with families and young people.”

Rumaldo Conchacala, Wiwa Church (Sierra Nevada de Santa Marta, Colombia)
“Under the guidance of my pastor and supervisor, Ismael Conchacala Gil, this summer I am developing a community garden initiative to support local families in La Tagua. The purpose is to provide nourishment for families while encouraging collective work within the community.
I enjoy working with the land, learning from the elders of my community, and participating in activities that strengthen Wiwa traditions and community life. I am is passionate about serving others and contributing to the well-being of his people. I became an Ambassador because I wanted to develop leadership skills and learn new ways to serve my community. I hope to learn from other young leaders, strengthen my faith, and contribute to projects that create positive change in Indigenous communities.”
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 us at communication@mosaicmennonites.org.
The opinions expressed in articles posted on Mosaic’s website are those of the author and may not reflect the official policy of Mosaic Conference. Mosaic is a large conference, crossing ethnicities, geographies, generations, theologies, and politics. Each person can only speak for themselves; no one can represent “the conference.” May God give us the grace to hear what the Spirit is speaking to us through people with whom we disagree and the humility and courage to love one another even when those disagreements can’t be bridged.
