Mark Labberton is president of Fuller Theological Seminary in Pasadena, California. He previously served as Lloyd John Ogilvie chair for preaching and director of the Lloyd John Ogilvie Institute for Preaching. Labberton came to Fuller after sixteen years as senior pastor of First Presbyterian Church of Berkeley, California. He has served as chair of John Stott Ministries (now Langham Partnership) and co-chair of the John Stott Ministries Global Initiative Fund. Today he continues to contribute to the mission of the global church as a senior fellow of International Justice Mission. He is the author of The Dangerous Act of Loving Your Neighbor and The Dangerous Act of Worship.

Sandra Maria Van Opstal is a second-generation Latina pastor, an activist, an author, and a powerful leading voice on the intersection of faith and justice. She is executive director of Chasing Justice, a movement that mobilizes Christians to live justly. Sandra's distinctiveness comes from working in both local and global contexts as a practitioner and an academic. She has reached audiences around the world on topics of reconciliation, global justice, and worship.