Jeremiah 48:30

He afterwards adds, still in the person of God, Not rectitude are his lies By the word עברתו, obertu, which some render, “his indignation,” the Prophet means, I think, insolence. It signifies properly excess, as it comes from עבר, ober, to pass over. The noun is indeed often taken to express indignation, because anger keeps within no limits, but is, as Horace says, a momentary madness. But on account of what the passage seems to require, I render it insolence, and it is the most suitable word. And God having declared that the insolence of Moab was seen by him, mentions also his lies The word בדים, means branches of trees, and sometimes sons or children, they being members of the community; and hence some render it “sons” here, as though the Prophet had said, that after the Moabites had been cut off, there would be none remaining to continue their name in the world. As then there was to be no posterity to the Moabites, they think that בדים, badim here means sons or children. But this view cannot be admitted, because we shall hereafter see that there was to be some residue to the Moabites. We cannot then take בדים, badim, but as referring to their vain boastings, for they were nothing but lies.

But we must consider what Jeremiah says; the word כן, ken, means right; and I take the two words as being in apposition, “His lies are not right;” that is, there is no stability in his lies. For when an apposition is explained, one of the words is turned to an adjective, or a preposition is inserted: Not right then are his lies; that is, in his lies there is no rectitude, or in his lies there is no stability. But the rectitude of which the Prophet now speaks, refers not to justice or equity, but to stability; and that it has this meaning may be gathered from other places. Then he says, that the boastings which the Moabites indulged in were vain, because God would not establish what they thought, or as they commonly say, what they presumed.

And then he adds the reason; the particle כן, ken, is to be taken here adverbially; it is an adverb of likeness, “so,” or thus, they shall not so do; that is, as they had conceived in their minds. It is a confirmation of the last clause; for why was there to be no stability in their lies? because God would break down the Moabites, so that their counsels would be vain, without any effect. We now then perceive the meaning of the words. Isaiah 16:6 uses nearly the same expressions, but he does not add this confirmation, that they would not be able to do what they intended. He only says, “there shall no rectitude be in their boastings,” לא כן בדיו, la ken bediu, having previously spoken of the loftiness of their heart and of their ferocity and insolence; for he mentions the third word with the other two.

Now this verse may be accommodated to our use; whenever the ungodly indulge in boasting, and insolently arrogate all things to themselves, let us not fear and tremble, but bear in mind what the Prophet teaches us here, whose admonition is very necessary; for he shews that this pride is in derision with God, and that when the ungodly fulminate in a terrible manner, there will be no effect to their lies. It follows, —