But when Pharaoh saw that there was a respite, he hardened his heart, and hearkened not unto them; as the LORD had said.
All Commentaries on Exodus 8:15 Go To Exodus 8
Richard Challoner
AD 1781
Hardened his own heart: By this we see that Pharao was himself the efficient cause of his heart being hardened, and not God.-- See the same repeated in ver. 32. Pharao hardened his heart at this time also: likewise chap. 9. 7, 35, and chap. 13. 15.