Moses will go to Pharaoh. Before it was only mentioned that he had to go to Israel in Egypt.
He will do wonders in Egypt before the Pharaoh, but the Pharaoh will not listen. God will harden his heart. The wonders will have a twofold effect: to give or strengthen faith and harden unbelief. False prophets can use wonders to mislead people (Deuteronomy 13:1–5). In the same way, the Egyptian magicians will perform wonders to oppose Moses and the truth (Exodus 7:11; 2 Timothy 3:8).
21 L'Eternel dit à Moïse: En partant pour retourner en Egypte, vois tous les prodiges que je mets en ta main: tu les feras devant Pharaon. Et moi, j'endurcirai son cœur, et il ne laissera point aller le peuple.