There the angel of the LORD appeared to him in a blazing fire from within a bush. Moses saw the bush ablaze with fire, but it was not consumed.
2. And the Angel of the Lord appeared unto him. It was necessary that he should assume a visible form, that he might be seen by Moses, not as he was in his essence, but as the infirmity of the human mind could comprehend him.
The years of the life of Moses are remarkably divided into three forties: the first forty he spent as a prince in Pharaoh's court, the second a shepherd in Midian, the third a king in Jeshurun; so changeable is the life of men, especially the life of good men. He had now finished his second forty, when he received his commission to bring Israel out of Egypt.
Commenting on Exodus 3:1-6
And the Angel of the Lord appeared unto him,.... Not a created angel, but the Angel of God's presence and covenant, the eternal Word and Son of God; since he is afterwards expressly called Jehovah, and calls himself the God of Abraham, Isaac, and Jacob, which a created angel would never do: the appearance was: in a flame of fire, out of the midst of...