Charles Ellicott Commentary Acts 7:25

"and he supposed that his brethren understood that God by his hand was giving them deliverance; but they understood not." — Acts 7:25 (ASV)

For he supposed his brethren would have understood . . .—Better, and he supposed. The Greek conjunction never has the meaning of “for,” and the insertion of that word gives to the act of slaying the Egyptian a deliberate character which, in the narrative of Exodus 2:11-12, does not belong to it.

Would deliver them.—Literally, was giving them salvation, or deliverance; the act being itself one of championship and the first step to deliverance.