Exodus 10:7-9

7Then Pharaoh’s officials asked him, “How long will this man hold us in his grip? Let the Israelite men go to worship the Lord their God. When will you realize that Egypt is ruined?”

8So Moses and Aaron were brought back to Pharaoh. “Go, worship the Lord your God,” he said to them. “But exactly who will be going?”

9Moses answered, “Everyone! We’ll be taking our young and old, our sons and daughters, our flocks and herds with us. For us it’s a pilgrimage festival in the Lord’s honor.”