Exodus 9:12 - Exposition

And the Lord hardened Pharaoh's heart . Up to this time the hardening of Pharaoh's heart has been ascribed to himself, or expressed indefinitely as a process that was continually going on—now for the first time it is positively stated that God hardened his heart, as he had threatened that he would ( Exodus 4:21 ). On the general law of God's dealings with wicked men, see the comment on the above passage