Puzzles and paradoxes
anonymous. 1987.  Facts and Faith 1(2):6. CELD ID 6215

Abstract
Congratulations to those of you who took the time and care to solve the puzzle and the paradox presented in our spring/summer issue. For those who need some help or confirmation [for the paradox], here it is: The seeming contradiction of Pharaoh's hardening of his heart and God's hardening of Pharaoh's heart may be resolved by applying Steps 1 and 4 from our list of tools from science.