Acts 7:33

“When forty years were fulfilled, an angel of the Lord appeared to him in the wilderness of Mount Sinai, in a flame of fire in a bush.

When Moses saw it, he wondered at the sight. As he came close to see, the voice of the Lord came to him,

‘I am the God of your fathers: the God of Abraham, the God of Isaac, and the God of Jacob.’ Moses trembled and dared not look.

I have surely seen the affliction of my people who are in Egypt, and have heard their groaning. I have come down to deliver them. Now come, I will send you into Egypt.’

“This Moses whom they refused, saying, ‘Who made you a ruler and a judge?’—God has sent him as both a ruler and a deliverer by the hand of the angel who appeared to him in the bush.

This man led them out, having worked wonders and signs in Egypt, in the Red Sea, and in the wilderness for forty years.