Exodus 3:3

3:3 So Moses thought, “I will turn aside to see this amazing sight. Why does the bush not burn up?”

Exodus 3:9

3:9 And now indeed the cry of the Israelites has come to me, and I have also seen how severely the Egyptians oppress them.

Exodus 3:19-20

3:19 But I know that the king of Egypt will not let you go, not even under force. 3:20 So I will extend my hand and strike Egypt with all my wonders that I will do among them, and after that he will release you.