Exodus 2:11-14

11And it came to pass in those days, when Moses was grown, that he went out to his brethren, and looked on their burdens: and he saw an Egyptian smiting an Hebrew, one of his brethren. 12And he looked this way and that way, and when he saw that there was no man, he slew the Egyptian, and hid him in the sand. 13And when he went out the second day, behold, two men of the Hebrews strove together: and he said to him that did the wrong, Why smitest thou thy companion? 14And he said, Who made thee a prince and a judge over us? intendest thou to kill me, as thou didst kill the Egyptian? And Moses feared, and said, Surely this thing is known.1