Cross reference
Exodus 2:12
12 And 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.
Acts 7:24-26
24 And seeing one of them suffer wrong, he defended him, and avenged him that was oppressed, and smote the Egyptian:
25 For he supposed his brethren would have understood how that God by his hand would deliver them: but they understood not.
26 And the next day he shewed himself 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?