Exodus 4:15-16

15, 16. Moses was still to be the mediator, while Aaron was to be the interpreter of God’s word as he received it from Moses . Yet it is instructive to notice that as Moses advances in his work and grows in faith, (and shall we not say, wears away the desert rusticity?) Aaron gradually retires from the prominent position which at first he held, and Moses comes more forward . Aaron is the spokesman, but while we read of the lineage of “that Aaron and Moses,” yet it is always “Moses and Aaron” who come before Pharaoh . It is Aaron who casts down the rod which swallows up the magicians’ rods, and who smites Egypt with the first and mildest blows; but it is Moses who prostrates Pharaoh’s sorcerers with such a stroke that they lift their heads no more, (Exodus 9:11,) and it is his rod that strikes the final terrible blows thereafter, till the Red Sea rolls back over Pharaoh.