How graciously God confirms his word. He had prepared the mind of Moses to expect this inattention on the part of Pharaoh several times before: Exodus 3:19; Exodus 7:4 etc. And thus the issue proved. But what awful scriptures are these which explain the cause of such obduracy! John 12:37-40; Romans 11:8.
Related Commentaries of Exodus 11:9
Exodus 11:9-10
9 And the LORD said unto Moses, Pharaoh shall not hearken unto you; that my wonders may be multiplied in the land of Egypt.
10 And Moses and Aaron did all these wonders before Pharaoh: and the LORD hardened Pharaoh's heart, so that he would not let the children of Israel go out of his land.