So evil can't exist unless good exists. But good can't exist unless God exists. In other words, there can be no objective evil unless there is objective good, and there can be no objective good unless God exists. If evil is real-and we all know it is-then God exists."1
Checkout Turek's latest book, Stealing from God. Our review is here.
Courage and Godspeed,
1. Frank Turek, Stealing from God, p. 117.