Did God Harden Pharaoh's Heart, or Did Pharaoh?
Colin Smith has written an interesting article (at Dr. James White's web site) regarding who it was who was responsible for the hardening of Pharoah's heart - found here.
"...if anyone makes the assistance of grace depend on the humility or obedience of man and does not agree that it is a gift of grace itself that we are obedient and humble, he contradicts the Apostle who says, "What have you that you did not receive?" (1 Cor. 4:7), and, "But by the grace of God I am what I am" (1 Cor. 15:10). (Council of Orange: Canon 6)
We are a community of confessing believers who love the gospel of Jesus Christ, affirm the Biblical and Christ-exalting truths of the Reformation such as the five solas, the doctrines of grace, monergistic regeneration, and the redemptive historical approach to interpreting the Scriptures.