4:4 became a rod. The rod which was transmuted into a serpent, and then again into a rod, was Moses’ shepherd’s crook. Both events were miracles–the first a creative miracle, generating life in non-living materials (a phenomenon which evolutionists believe could be accomplished naturalistically if enough time were available), the second a providential miracle, accelerating the natural process whereby a living organism becomes inanimate through death and ossification.

4:7 turned again. The order in this case was, first, a providential miracle, then a creative healing miracle, opposite to the order in the first paired miracle. The magicians later were able to appear to duplicate the first, but they would have been unable to use deception to imitate the second, since it would have taken far more than a hypnotic suggestion to make a person imagine he had been cured of leprosy (see on Exodus 7:12; 8:23).

4:11 Who hath made man’s mouth. Here is a direct claim that the human body was not developed by random processes, but by God’s direct power.

4:14 Aaron the Levite. Moses certainly knew before this time that Aaron, his older brother, was a Levite. The use of this title probably indicates that Aaron already held a position of leadership among his brethren in the other tribes, and would be more easily accepted by them initially than would Moses.

4:24 kill him. According to the Abrahamic covenant (Genesis 17:10-14), neglect of the rite of circumcision was a capital crime for an Israelite. Moses had failed to appreciate its great importance in God’s sight, but this action of Zipporah satisfied God’s demand that His laws be obeyed.

4:31 the people believed. Initially the Israelites accepted Aaron at his word. However, their attitude soon changed as evidenced by Exodus 6:9.