Michael Horton is the J. Gresham Machen professor of apologetics and systematic theology at Westminster Seminary California (Escondido, California) and host of the Core Christianity national radio broadcast. He is the author of many books, including Core Christianity: Finding Yourself in God’s Story.

Adriel Sanchez is pastor of North Park Presbyterian Church, a congregation in the Presbyterian Church in America (PCA). In addition to his pastoral responsibilities, he also serves the broader church as a co-host of the Core Christianity national radio broadcast.