But when Pharaoh saw that there was a respite, his heart became unyielding and he did not listen to them, as Yahweh had spoken. Bible see other translations

“unyielding.” More literally, “he made his heart unyielding.” Pharaoh talked himself out of keeping his word and doing what he said he would do. The Hebrew word is kabad (#03513 כָּבַד), meaning unyielding, hard, insensitive, stubborn, unresponsive, dull. See commentary on Exodus 4:21 and 10:1.

Commentary for: Exodus 8:15