Acts 7:30-34

30And when forty years were fulfilled, an angel appeared to him in the wilderness of mount Sinai, in a flame of fire of a bush.

31And Moses seeing it wondered at the vision; and as he went up to consider it, there was a voice of [the] Lord,

32I am the 1God of thy fathers, the 2God of Abraham, and of Isaac, and of Jacob. And Moses trembled, and durst not consider [it].

33And the Lord said to him, Loose the sandal of thy feet, for the place on which thou standest is holy ground.

34I have surely seen the ill treatment of my people which is in Egypt, and I have heard their groan, and have come down to take them out of it; and now, come, I will send thee to Egypt.