Exodus 2:15-17

15When Pharaoh heard about this matter, he tried to kill Moses. Then Moses fled from Pharaoh’s presence and took refuge in the land of Midian, where he sat down by a well.

16Now the priest of Midian had seven daughters; and they came and drew water [from the well where Moses was resting] and filled the troughs to water their father’s flock.

17Then shepherds came and drove them away, but Moses stood up and helped them and watered their flock.