Acts 7:29-31 New Revised Standard Version Catholic Edition (NRSVCE)
29 When he heard this, Moses fled and became a resident alien in the land of Midian. There he became the father of two sons.
30 “Now when forty years had passed, an angel appeared to him in the wilderness of Mount Sinai, in the flame of a burning bush. 31 When Moses saw it, he was amazed at the sight; and as he approached to look, there came the voice of the Lord: