"And when forty years had passed, an Angel of the Lord appeared to him in a flame of fire in a bush, in the wilderness of Mount Sinai.
Acts 7:30
Surrounding context
7:29 Then, at this saying, Moses fled and became a dweller in the land of Midian, where he had two sons.
7:30 "And when forty years had passed, an Angel of the Lord appeared to him in a flame of fire in a bush, in the wilderness of Mount Sinai.
7:31 When Moses saw it, he marveled at the sight; and as he drew near to observe, the voice of the Lord came to him,