(20) And . . . he was content.--He acknowledged Aaron's plea to be just, and that he had himself spoken hastily. This is a remarkable instance of Moses' humility, and of the human side of his nature as a lawgiver. (See also Numbers 32:6, &c.) Hence Jewish tradition from time immemorial ascribes the mistake to Moses, and not to Aaron. The paraphrase of this verse in the Palestine Chaldee Version, which embodies the ancient opinions, is very instructive. It is as follows: "And when Moses heard it, he approved of this explanation. Whereupon he sent a herald through the whole camp of Israel, saying, It is I from whom the law had been hid, and my brother Aaron brought it to my remembrance."
10:12-20 Afflictions should rather quicken us to our duty, than take us from it. But our unfitness for duty, when it is natural and not sinful, will have great allowances made for it; God will have mercy, and not sacrifice. Let us profit by the solemn warning this history conveys. When professing worshippers come with zeal without knowledge, carnal affections, earthly, light, vain, trifling thoughts, the devices of will-worship, instead of the offering of soul and spirit; then the incense is kindled by a flame which never came down from heaven, which the Spirit of a holy God never sent within their hearts.
And when Moses heard that, he was content. He said no more, he did not proceed in blaming him and his sons, but was satisfied with the answer returned; he considered the grief and trouble of mind that attended Aaron, which might not only cause him to disregard food, but even to forget what was commanded to be done in this case; and besides he might observe, that there was some difficulty attending it; in some cases the flesh of the sin offering was to be eaten, and not burnt; in others, to be burnt, and not eaten; and this being the first time of offering one, the mistake might be the more easily made; and fearing one might be made, and especially when Aaron was in such circumstances, might be the reason Moses so diligently sought after the goat of the sin offering: moreover, what Aaron had done appeared to be not out of any wilful neglect of the command of God, but with a good design, as judging it would be unacceptable to him, should he have eaten of it in his circumstances. Moses upon the whole thought him excusable, at least insisted no more upon the blame. The Jewish writers make the mistake to lie on the side of Moses and not Aaron; and which the former acknowledged, according to the Targums of Jonathan and Jerusalem: see Deuteronomy 26:12.