And when the Lord saw that he turned aside to see,.... Who is before called the Angel of the Lord, here Jehovah, the omniscient and omnipresent Being, who observing Moses turning aside and going onward to gratify his curiosity, by examining more narrowly this strange phenomenon: God called unto him out of the midst of the bush; with an articulate voice, being the eternal Word: and said, Moses, Moses; for the Lord knows his people distinctly, and can call them by name; and the repetition of his name not only shows familiarity and a strong vehement affection for him, but haste to stop him, that he might proceed no further; and this was done in order to stir him up to hearken to what would be said to him: and he said, here am I; ready to hear what shall be said, and to obey whatever is commanded.