The Lord saw - The interchange of the two divine names is to be observed; "Jehovah" (Yahweh) saw, "God" called.

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.

And when the {d} LORD saw that he turned aside to see, God called unto him out of the midst of the bush, and said, Moses, Moses. And he said, Here am I.

(d) Whom he calls the angel in Ex 3:2.

3:4 When the Lord saw that he turned aside to see it, God called to him - If he had carelessly neglected it, it is likely God had departed and said nothing to him. God called and said, Moses, Moses - This which he heard could not but surprise him much more than what he saw. Divine calls are then effectual, when the spirit of God makes them particular, and calls us as by name. The Word calls, Ho, every one; the Spirit, by the application of that, calls, Ho, such a one; I know thee by name. Here am I - Not only to hear what is said, but to do what I am bidden.

4. when the Lord saw that he turned aside to see-The manifestations which God anciently made of Himself were always accompanied by clear, unmistakable signs that the communications were really from heaven. This certain evidence was given to Moses. He saw a fire, but no human agent to kindle it; he heard a voice, but no human lips from which it came; he saw no living Being, but One was in the bush, in the heat of the flames, who knew him and addressed him by name. Who could this be but the Divine Being?

3:1-6 The years of the life of Moses are divided into three forties; the first forty he spent as a prince in Pharaoh's court, the second as a shepherd in Midian, the third as a king in Jeshurun. How changeable is the life of man! The first appearance of God to Moses, found him tending sheep. This seems a poor employment for a man of his parts and education, yet he rests satisfied with it; and thus learns meekness and contentment, for which he is more noted in sacred writ, than for all his learning. Satan loves to find us idle; God is pleased when he finds us employed. Being alone, is a good friend to our communion with God. To his great surprise, Moses saw a bush burning without fire to kindle it. The bush burned, and yet did not burn away; an emblem of the church in bondage in Egypt. And it fitly reminds us of the church in every age, under its severest persecutions kept by the presence of God from being destroyed. Fire is an emblem, in Scripture, of the Divine holiness and justice, also of the afflictions and trials with which God proves and purifies his people, and even of that baptism of the Holy Ghost, by which sinful affections are consumed, and the soul changed into the Divine nature and image. God gave Moses a gracious call, to which he returned a ready answer. Those that would have communion with God, must attend upon him in the ordinances wherein he is pleased to manifest himself and his glory, though it be in a bush. Putting off the shoe was a token of respect and submission. We ought to draw nigh to God with a solemn pause and preparation, carefully avoiding every thing that looks light and rude, and unbecoming his service. God does not say, I was the God of Abraham, Isaac, and Jacob, but I am. The patriarchs still live, so many years after their bodies have been in the grave. No length of time can separate the souls of the just from their Maker. By this, God instructed Moses as to another world, and strengthened his belief of a future state. Thus it is interpreted by our Lord Jesus, who, from hence, proves that the dead are raised, Lu 20:37. Moses hid his face, as if both ashamed and afraid to look upon God. The more we see of God, and his grace, and covenant love, the more cause we shall see to worship him with reverence and godly fear.