And they rose up early on the morrow, and offered burnt offerings, and brought peace offerings; and the people sat down to eat and to drink, and rose up to play.

Wesley's Notes

32:6 And they rose up early on the morrow, and offered sacrifice to this new made deity. And the people sat down to eat and drink of the remainder of what was sacrificed, and then rose up to play - To play the fool, to play the wanton. It was strange that any of the people, especially so great a number of them, should do such a thing. Had they not, but the other day, in this very place, heard the voice of the Lord God speaking to them out of the midst of the fire, Thou shalt not make to thyself any graven image? - Yet They made a calf in Horeb, the very place where the law was given It was especially strange that Aaron should be so deeply concerned, should make the calf and proclaim the feast! Is this Aaron the saint of the Lord! Is this he that had not only seen, but had been employed in summoning the plagues of Egypt, and the judgments executed upon the gods of the Egyptians? What! And yet himself copying out the abandoned idolatries of Egypt? How true is it, that the law made them priests which had infirmity, and needed first to offer for their own sins?

Matthew Henry's Concise Commentary

32:1-6 While Moses was in the mount, receiving the law from God, the people made a tumultuous address to Aaron. This giddy multitude were weary of waiting for the return of Moses. Weariness in waiting betrays to many temptations. The Lord must be waited for till he comes, and waited for though he tarry. Let their readiness to part with their ear-rings to make an idol, shame our niggardliness in the service of the true God. They did not draw back on account of the cost of their idolatry; and shall we grudge the expenses of religion? Aaron produced the shape of an ox or calf, giving it some finish with a graving tool. They offered sacrifice to this idol. Having set up an image before them, and so changed the truth of God into a lie, their sacrifices were abomination. Had they not, only a few days before, in this very place, heard the voice of the Lord God speaking to them out of the midst of the fire, Thou shalt not make to thyself any graven image? Had they not themselves solemnly entered into covenant with God, that they would do all he had said to them, and would be obedient? ch. 24:7. Yet before they stirred from the place where this covenant had been solemnly made, they brake an express command, in defiance of an express threatening. It plainly shows, that the law was no more able to make holy, than it was to justify; by it is the knowledge of sin, but not the cure of sin. Aaron was set apart by the Divine appointment to the office of the priesthood; but he, who had once shamed himself so far as to build an altar to a golden calf, must own himself unworthy of the honour of attending at the altar of God, and indebted to free grace alone for it. Thus pride and boasting were silenced.