Acts of the Apostles 7:22-25

Moses was taught all the wisdom of the Egyptians, and he was powerful in both speech and action. “One day when Moses was forty years old, he decided to visit his relatives, the people of Israel. He saw an Egyptian mistreating an Israelite. So Moses came to the man’s defense and avenged him, killing the Egyptian. Moses assumed his fellow Israelites would realize that God had sent him to rescue them, but they didn’t.