Ephraem the Syrian
The Lord addressed Moses, instructing him to confront Pharaoh without fear of his arrogance. He revealed that He had hardened Pharaoh's heart to allow for the fulfillment of the decree. God had handed Pharaoh over to Moses so that he might witness Pharaoh's insincerity—not because God was unaware of it (as He had forewarned Moses that Pharaoh would not heed his words)—but so that miraculous signs could be performed, which would be recounted in future generations.