Saying, I am the God ... - See this explained in the notes on Matthew 22:32.

Then Moses trembled - Exodus 3:6.

Saying, I am the God of thy fathers,.... Who made a covenant with them, promised the land of Canaan to them, and to their posterity, and to bring the children of Israel out of their servitude and bondage, and into the possession of the promised land:

the God of Abraham, and the God of Isaac, and the God of Jacob; words which our Lord makes use of to prove the doctrine of the resurrection of the dead, since God is not the God of the dead, but of the living; see Gill on Matthew 22:32.

Then Moses trembled; this Stephen had by tradition; in which way also the author of the epistle to the Hebrews had the account of his trembling and quaking at the same mount, when the law was given, Hebrews 12:21

and durst not behold; either "the sight" of the burning bush, and curiously consider and inquire into that, as the Syriac version reads; or him, as the Ethiopic version; that is, God, and which is expressed in

Trembled (ἔντρομος γενόμενος)

Lit., having become trembling; having fallen into a tremor.

Saying, I am the God of thy fathers, the God of Abraham, and the God of Isaac, and the God of Jacob. Then Moses trembled, and durst not behold.

7:30-34 And when forty years were expired, etc. For the call of Moses, see Ex 3:1-10.

7:30-41 Men deceive themselves, if they think God cannot do what he sees to be good any where; he can bring his people into a wilderness, and there speak comfortably to them. He appeared to Moses in a flame of fire, yet the bush was not consumed; which represented the state of Israel in Egypt, where, though they were in the fire of affliction, yet they were not consumed. It may also be looked upon as a type of Christ's taking upon him the nature of man, and the union between the Divine and human nature. The death of Abraham, Isaac, and Jacob, cannot break the covenant relation between God and them. Our Saviour by this proves the future state, Mt 22:31. Abraham is dead, yet God is still his God, therefore Abraham is still alive. Now, this is that life and immortality which are brought to light by the gospel. Stephen here shows that Moses was an eminent type of Christ, as he was Israel's deliverer. God has compassion for the troubles of his church, and the groans of his persecuted people; and their deliverance takes rise from his pity. And that deliverance was typical of what Christ did, when, for us men, and for our salvation, he came down from heaven. This Jesus, whom they now refused, as their fathers did Moses, even this same has God advanced to be a Prince and Saviour. It does not at all take from the just honour of Moses to say, that he was but an instrument, and that he is infinitely outshone by Jesus. In asserting that Jesus should change the customs of the ceremonial law. Stephen was so far from blaspheming Moses, that really he honoured him, by showing how the prophecy of Moses was come to pass, which was so clear. God who gave them those customs by his servant Moses, might, no doubt, change the custom by his Son Jesus. But Israel thrust Moses from them, and would have returned to their bondage; so men in general will not obey Jesus, because they love this present evil world, and rejoice in their own works and devices.