Mitch has served as senior pastor at Wellspring from its beginning in 2015. He began ministry in 1994 at Korean West Alliance Church, which birthed Living Water Alliance Church in 2011, which merged with Blanchard Alliance to become Wellspring. He was born to Korean immigrant parents, grew up in Japan, studied philosophy at Wheaton (B.A.), ministry at Trinity Evangelical Divinity School (M.Div.), and biblical theology at Wheaton College Graduate School (M.A., Biblical Exegesis; Ph.D.). With G. K. Beale he wrote God Dwells Among Us, a biblical theology of mission from creation to new creation. He has also taught at Wheaton College. He lives in Naperville with his wife, Eunsil, and has three daughters: Elise, Ana, and Eden.