Exodus 2:15-17

15And Pharaoh heard of this matter, and sought to slay Moses. But Moses fled from before Pharaoh, and dwelt in the land of Midian. And he sat by the well.

16And the priest of Midian had seven daughters; and they came and drew [water], and filled the troughs, to water their father's flock.

17And the shepherds came and drove them away; but Moses rose and helped them, and watered their flock.