10. And when they came unto the borders, etc The history here is particularly deserving of notice, when the two tribes and half-tribe, intending to erect a memorial of common faith and fraternal concord, allowed themselves from inconsiderate zeal to adopt a method which was justly suspected by their brethren. The ten tribes, thinking that the worship of God was violated with impious audacity and temerity, were inflamed with holy wrath, and took up arms to use them against their own blood; nor were they appeased till they had received full satisfaction. The motive for erecting the altar was right in itself. For the object of the children of Reuben, Gad, and Manasseh, was to testify that though they were separated from their brethren by the intervening stream, they were, however, united with them in religion, and cherished a mutual agreement in the doctrine of the Law. Nothing was farther from their intention than to innovate in any respect in the worship of God. But they sinned not lightly in attempting a novelty, without paying any regard to the high priest, or consulting their brethren, and in a form which was very liable to be misconstrued.
We know how strictly the Law prohibited two altars, (Exodus 20:24) for the Lord wished to be worshipped in one place only. Therefore, when on the very first blush of the case, all were at once led to think that they were building a second altar, who would not have judged them guilty of sacrilege in framing a ritual of a degenerate description, at variance with the Law of God? Seeing, then, that the work might be deemed vicious, they ought, at least, in so great and so serious a matter, to have made their brethren sharers in their counsel; more especially were they in the wrong in neglecting to consult the high priest, from whose lips the divine will was to be ascertained. They were, therefore, deserving of blame, because, as if they had been alone in the world, they considered not what offence might arise from the novelty of the example. Wherefore, let us learn to attempt nothing rashly, even should it be free from blame, and let us always give due heed to the admonition of St. Paul, (1 Corinthians 6:12; 1 Corinthians 10:23) that it is necessary to attend not only to what is lawful, but to what is expedient; more especially let us sedulously beware of disturbing pious minds (182) by the introduction of any kind of novelty.
(182) Latin, “ Pios animos.” French, “ Les bonnes consciences;” “Good consciences.” — Ed.