Jeja Korean Presbyterian Church serves the Korean and broader Thornhill community through worship services, spiritual education, and pastoral care rooted in Presbyterian traditions. The congregation gathers for Sunday services conducted in Korean and English, offering members opportunities for prayer, Bible study, and fellowship. Beyond worship, the church operates community programs including youth groups, adult education classes, and support services for families navigating life transitions. The church also participates in local charitable initiatives and maintains connections with other Presbyterian congregations in the GTA, working to strengthen both spiritual life and community bonds.