John Calvin's Bible Commentary
Exodus 35:20
20.And all the congregation of the children of Israel. There is no reason why any one should be surprised that the order of the narrative is changed, since it plainly appears from many passages that the order of time is not always observed by Moses. Thus he appears here to connect the fall of the people with the foregoing injunctions, both with respect to the building of the tabernacle, and the rest of the religious service of God. But I have shewn (292) upon good grounds that the tabernacle was built before the people fell into idolatry. Therefore Moses now supplies what had been before omitted, though I have followed the thread of the narrative in order to render it less difficult.
The sum of this relation is, that whatever was necessary for the building of the tabernacle was liberally contributed. It must be observed that they had departed from the presence of Moses: for we gather from this circumstance that, having severally retired to their tents, they had considered apart by themselves what they should give. Hence their liberality is deserving of greater praise, because it was premeditated; for it often happens that when a person has been bountiful from sudden impulse, he afterwards repents of it. When it is added that “they came, every one,” it is a question whether he means that the minds of the whole people were prompt and cheerful in giving, or whether he indirectly rebukes the stinginess and sordidness of those who meanly neglected their duty. In whichever way we choose to take it, Moses repeats what we have seen before, that the offerings were not extorted by force or necessity, but that they proceeded from voluntary and cordial feelings. I thus construe the words, “They came, every one, as his heart stirred each of them up,” as if he had said that they were not compelled by any law imposed upon them, but that every one was his own lawgiver, of his own good-will. This passage is absurdly twisted by the Papists in proof of free-will; as if men were incited by themselves to act rightly and well; for Moses, even while praising their spontaneous feelings, does not mean to exclude the grace of the Spirit, whereby alone our hearts are inclined to holy affections; but this stirring up is contrasted with the unwillingness by which ungodly men are withheld and restrained. Those, therefore, whom the Spirit rules, He does not drag unwillingly by a violent and extrinsic impulse, as it is called, but He so works within them upon their will, that believers stir up themselves, and they voluntarily follow His leadings. So that when it is added, “whose spirit was liberal in himself,” (293) the commencement of well-doing is not ascribed to men, nor is even their concurrence praised, as if they co-operated apart from God, but only the internal impulse of their minds, and the sincerity of their desires·