Exodus 2:11-14

Now it came about in those days, when Moses had grown up, that he went out to his fellow Hebrews and looked at their hard labors; and he saw an Egyptian beating a Hebrew, one of his fellow Hebrews. So he looked this way and that, and when he saw that there was no one around, he struck and killed the Egyptian, and hid his body in the sand. Now he went out the next day, and behold, two Hebrews were fighting with each other; and he said to the offender, “Why are you striking your companion?” But he said, “Who made you a ruler and a judge over us? Do you intend to kill me as you killed the Egyptian?” Then Moses was afraid and said, “Surely the matter has become known!”