What does Exodus 8:9 mean?
After several demands (Exodus 5:1–3), a miraculous sign (Exodus 7:10–12), and now two plagues (Exodus 7:20–23; 8:6–7), Egypt's Pharaoh has called for Moses and Aaron. He claims he will release the Hebrews for worship (Exodus 3:18), so long as the frogs infesting the land are taken away (Exodus 8:8). This is insincere. The Lord already knows that Pharaoh will only let Israel go under the most extreme pressure (Exodus 3:19–20). When this plague is gone, Pharaoh's stubbornness will return (Exodus 8:15). For now, this is another opportunity to demonstrate the power of God.Moses gives Pharaoh the choice of when, precisely, the plague of frogs will end. This would help dispel any claims that the disaster faded away naturally, or that its end was only a coincidence. The chosen time is the next day (Exodus 8:10). The obvious question is why Pharaoh didn't respond with, "make the frogs go away right now." It's possible he assumed that would not be possible. Egyptian religion emphasized ritual and incantation. Pharaoh might have thought that "tomorrow" was the soonest he could expect. Or Moses may have given him options. Or perhaps Pharaoh was holding on to some level of pride and saw "tomorrow" as less desperate. Whatever the case, the plague will end exactly as agreed (Exodus 8:12), proving that it was the work of the Lord of Israel (Exodus 3:15).