32:16-27 Here is the good effect of plain dealing. Moses, by showing their sin, and the danger of it, brought them to their duty, without murmuring or disputing. All men ought to consider the interests of others as well as their own; the law of love requires us to labour, venture, or suffer for each other as there may be occasion. They propose that their men of war should go ready armed before the children of Israel into the land of Canaan, and that they should not return till the conquest of Canaan was ended. Moses grants their request, but he warns them of the danger of breaking their word. If you fail, you sin against the Lord, and not against your brethren only; God will certainly reckon with you for it. Be sure your sin will find you out. Sin will surely find out the sinner sooner or later. It concerns us now to find our sins out, that we may repent of them, and forsake them, lest they find us out to our ruin.

Verse 20. - Before the Lord. Perhaps in a quasi-local sense, as the vanguard of the host before the sacred symbols of the Lord's presence (see on chapter Numbers 10:21, and Joshua 6:9). But since the same expression (לִפְנֵי יְהוָה) is twice used in a much vaguer sense in verse 22, it is more probable that it only means "in the Lord's service, or "beneath his eye."

And Moses said unto them,.... Being better disposed towards them, and more satisfied with the reasonableness of their request, it being explained unto him:

if ye will do this thing; which they had promised:

if ye will go armed before the Lord to war; they had said they would go ready armed before the children of Israel, but Moses expresses it "before the Lord"; which is more agreeable to their encampment and order in marching, for not the standard of Reuben but that of Judah went foremost, yet the standard of Reuben marched directly before the sanctuary bore by the Kohathites, Numbers 10:18, and so might be properly said to go before the Lord, who dwelt there.

20-33. Moses said unto them, If ye will do this thing—with sincerity and zeal.

go before the Lord to war—The phrase was used in allusion to the order of march in which the tribes of Reuben and Gad immediately preceded the ark (see on [96]Nu 2:10-31), or to the passage over the Jordan, in which the ark stood in mid-channel, while all the tribes marched by in succession (Jos 3:4), of course including those of Reuben and Gad, so that, literally, they passed over before the Lord and before the rest of Israel (Jos 4:13). Perhaps, however, the phrase is used merely in a general sense to denote their marching on an expedition, the purpose of which was blessed with the presence, and destined to promote the glory, of God. The displeasure which Moses had felt on the first mention of their proposal had disappeared on the strength of their solemn assurances. But a lurking suspicion of their motives seems still to have been lingering in his mind—he continued to speak to them in an admonitory strain; and he concluded by warning them that in case of their failing to redeem their pledge, the judgments of an offended God would assuredly fall upon them. This emphatic caution against such an eventuality throws a strong doubt on the honesty of their first intentions; and yet, whether through the opposing attitude or the strong invectives of Moses they had been brought to a better state of mind, their final reply showed that now all was right.

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