Exodus 2:10-12

And the child grew, and she brought him to Pharaoh’s daughter, and he became her son. So she called his name Moses, saying, “Because I drew him out of the water.” Now it came to pass in those days, when Moses was grown, that he went out to his brethren and looked at their burdens. And he saw an Egyptian beating a Hebrew, one of his brethren. So he looked this way and that way, and when he saw no one, he killed the Egyptian and hid him in the sand.