Aaron spake. — According to the Divine command (Exodus 4:16).
And did the signs. — So, generally, afterwards (Exodus 7:10; Exodus 7:19; Exodus 8:6; Exodus 8:17, &c.), not, however, universally (see Exodus 9:10; Exodus 9:23; Exodus 10:13; Exodus 14:21; &c).
The people believed. — The narrative is very much compressed. The elders heard the words, and saw the signs first. Then they must have summoned an assembly of the people, after working hours, and the people must have been addressed and shown the signs. The effect was to convince them also, and to induce them to accept Moses and Aaron for the national leaders.
Worshipped. — Some think that Moses was the object of the worship; but it is better to regard it as offered to “the Lord,” who had “visited” them.