9 And the Lord said to Moses, Pharaoh will not give ear to you, so that my wonders may be increased in the land of Egypt.
Exodus 11:9 Cross References - BBE
Exodus 3:19
19 And I am certain that the king of Egypt will not let you go without being forced.
Exodus 7:3-4
Exodus 10:1
1 And the Lord said to Moses, Go in to Pharaoh: for I have made his heart and the hearts of his servants hard, so that I may let my signs be seen among them:
Romans 9:16-18
16 So then, it is not by the desire or by the attempt of man, but by the mercy of God.
17 For the holy Writings say to Pharaoh, For this same purpose did I put you on high, so that I might make my power seen in you, and that there might be knowledge of my name through all the earth.
18 So then, at his pleasure he has mercy on a man, and at his pleasure he makes the heart hard.