Exodus 10:8

So Moses and Aaron were brought back to Pharaoh . And he said to them, Go , serve the Lord your God . But which ones are to go ?

Then Moses and Aaron were brought back to Pharaoh. “Go, worship the Lord your God,” he said. “But tell me who will be going.”

And Moses and Aaron were brought again unto Pharaoh : and he said unto them, Go, serve the Lord your God : but who are they that shall go?