v1: Moses had been on the mountain 40 days and 40 nights (24.18), and Aaron and Hur had been left in charge (24.14). The people grew impatient in waiting for Moses, "who brought us up out of Egypt". Yet this misunderstanding led them not into a greater honour for Moses, but into idolatry; "make us gods" they asked Aaron. A "god" who is the work of men's hands is hardly worthy of the name!
v2-4: Aaron gave instructions to the people, and he made the golden calf. He did not ask Bezalel, the gifted artisan, to do the work. We presume, therefore, that the calf was comparatively basic in design. It seems ludicrous to say that this thing brought the nation of Israel out of Egypt.
v5-6: There was a feast with burnt offerings and fellowship offerings, "a festival to the Lord", claimed Aaron. Perhaps there was a genuine desire in him to worship the true God. The idolatry led quickly to licentiousness. There is no doubt that wrong worship leads to ungodly living.
v7-8: Nothing escapes the Lord, for He sees all things. He gave Moses the responsibility of dealing with the situation. The Lord describes the people as "your people, whom you brought up out of Egypt", as if He didn't want anything to do with them, see v10 where He threatens to destroy them.
v9-10: The people deserved to be destroyed. The Lord, who can do anything, would make a great nation of Moses. This God could raise up children of Abraham from stones (Matt 3.9), and turn dry bones into a vast army (Ezek 37.1,10).
v11-13: Moses prayed for the people, to avert judgment. This prayer was unseen by the people; many prayers of great power and effect are secret.
v11: Moses prayed with great urgency. He asked "why?", for this was God's people; why should He destroy them?
v12: The testimony of God was wrapped up with the nation of Israel. If God were to destroy the people, then the purpose for their deliverance from Exodus would be lost. Therefore, he prayed, do not destroy them.
v13: Moses also pleads God's own character, that He remain faithful to His promises made to Abraham, to Isaac, and to Jacob.
v14: God did not bring the disaster that He had threatened.
v15-16: Moses returned from the mountain, carrying the two tablets of stone, on which the Ten Commandments were written. This was the work of the finger of God, was "inscribed on both sides", leaving room for no more (Deut 12.32).
v17-18: Joshua, the young man, had been with Moses, see 24.13. He had only heard the noise of the people, but unlike Moses, did not know what was happening (v7).
v19-20: Moses was extremely angry, but it seems that his anger was much less than the Lord's. Even here, therefore, the Lord's mercy is manifest, in that Moses was sent to deal with the people.
v21: Moses asked Aaron what had happened, for he had been left in charge./p>
v22-24: Aaron blamed the people; they were set on evil, and put pressure on Aaron to "make us gods". But Aaron's claim that the calf simply came out of the fire was not true (contrast v4).
v25: The people had continued to run wild, to "indulge in revelry" (v6).
v26: Moses needed support, and called for it; the sons of Levi (22,273; Num 2.32) sided with him; there were few in comparison to 603,550 in the other tribes (a ratio of more than 25 to 1).
v27-28: The command to kill the people, even brothers and friends and neighbours, such was the seriousness of their crime. (See also Deut 13.6-8 about exercising judgment against someone close.) As a result of the action, about 3,000 people were killed. Even this was a small proportion, but was intended to be a deterrent as well as a punishment.
v29: The sons of Levi were thus set apart from the other tribes, and was blessed by God. See 1 Cor 11.19, about the necessity of separation and division, so that those approved might be manifest.
v30: Moses now knew the seriousness of the people's offence. He returned to the Lord to pray again for the people. Moses' anger (v19-20) was not inconsistent with his compassion.
v31-32: Moses made no sacrifice, had no altar. He just prayed. The sin was "great", and people were guilty. Moses simply asked for God's atonement (or covering) for them, that He might forgive them. If not, Moses pleaded, he would take the blame. (Compare Rom 9.3) Moses asked God to forgive, for only God can forgive sins (Mark 2.7).
v33: The Lord explained that no man could be blotted out for another; hence Ezek 3.18; contrast John 11.50-51, where Caiaphas prophesied Jesus' death for the whole nation. Jesus Christ thus did what could not otherwise be done. He was cursed for us (Gal 3.13).
v34-35: God would still punish the people for their rebellion. And, yes, it was Aaron who made the golden calf.