By Jonathan Leeman
Jonathan Leeman is the Editorial Director of 9Marks, and an elder at Cheverly Baptist Church in Cheverly, Maryland. You can find him on Twitter at @JonathanLeeman.
By Mark Dever
Mark Dever is the senior pastor of Capitol Hill Baptist Church in Washington, D. C., and the President of 9Marks. You can find him on Twitter at @MarkDever.