Acts 7:26-30

And the day following he appeared unto them as they strove, and would have set them at one again, saying, Sirs, ye are brethren; why do ye wrong one to another? But he that did his neighbor wrong thrust him away, saying, Who made thee a ruler and a judge over us? Wouldest thou kill me, as thou killedst the Egyptian yesterday? And Moses fled at this saying, and became a sojourner in the land of Midian, where he begat two sons. And when forty years were fulfilled, an angel appeared to him in the wilderness of mount Sinai, in a flame of fire in a bush.