Exodus 10:22-24

Complete Jewish Bible

²² Moshe reached out his hand toward the sky, and there was a thick darkness in the entire land of Egypt for three days. ²³ People couldn’t see each other, and no one went anywhere for three days. But all the people of Isra’el had light in their homes.

(iii) ²⁴ Pharaoh summoned Moshe and said, “Go, worship Adonai; only leave your flocks and herds behind — your children may go with you.”