Acts 7:30-33 And when forty years were fulfilled, an angel appeared to him in the wilderness of mount Sinai, in a flame of fire of a bush.

Darby⁽ⁱ⁾ ³⁰ And when forty years were fulfilled, an angel appeared to him in the wilderness of mount Sinai, in a flame of fire of a bush. ³¹ And Moses seeing it wondered at the vision; and as he went up to consider it, there was a voice of [the] Lord, ³² *I* am the God of thy fathers, the God of Abraham, and of Isaac, and of Jacob. And Moses trembled, and durst not consider [it]. ³³ And the Lord said to him, Loose the sandal of thy feet, for the place on which thou standest is holy ground.