¹² And the Lord hardened the heart of Pharaoh, and he hearkened not unto them; as the Lord had spoken unto Moses.

10 And the Lord said unto Moses, Go in unto Pharaoh: for I have hardened his heart, and the heart of his servants, that I might shew these my signs before him:

¹⁸ Therefore hath he mercy on whom he will have mercy, and whom he will he hardeneth.