Continuing with my ‘doctrine of God’ series, I look at the question of what God knows. I analyze and critique three competing views of God’s foreknowledge; Thomism, Molinism, and Open Theism. This issue is particularly important because open theism is a relatively new perspective that has garnered a lot of attention and a great deal of criticism. For the book reviews, I take a look at Divine Providence by Thomas Flint and The Openness of God by Clark Pinnock, David Basinger, John Sanders, Richard Rice, and William Hasker. For the audience question I discuss the toughest intellectual challenge to Christianity.