Observe, the prayer of this hardened sinner was not to take away his sin, but to remove the punishment of it? This forms the striking difference between true said false repentance. Thus David says, mine iniquities are too heavy for me to bear. Psalms 38:4. Cain saith my punishment is greater than I can bear. Genesis 4:13.
Related Commentaries of Exodus 10:15
Exodus 10:15-17
15 For they covered the face of the whole earth, so that the land was darkened; and they did eat every herb of the land, and all the fruit of the trees which the hail had left: and there remained not any green thing in the trees, or in the herbs of the field, through all the land of Egypt.
16 Then Pharaoh calledb for Moses and Aaron in haste; and he said, I have sinned against the LORD your God, and against you.
17 Now therefore forgive, I pray thee, my sin only this once, and intreat the LORD your God, that he may take away from me this death only.