Matthew Henry's Complete Bible Commentary

Verse 28

Here is, 1. The doom of a false witness. He who, for favour to one side or malice to the other, gives in a false evidence, or makes an affidavit of that which he knows to be false, or at least does not know to be true, if it be discovered, his reputation will be ruined. A man may tell a lie perhaps in his haste; but he that gives a false testimony does it with deliberation and solemnity, and it cannot but be a presumptuous sin, and a forfeiture of man’s credit. But, though he should not be discovered, he himself shall be ruined; the vengeance he imprecated upon himself, when he took the false oath, will come upon him. 2. The praise of him that is conscientious: He who hears (that is, obeys) the command of God, which is to speak every man truth with his neighbour, he who testifies nothing but what he has heard and knows to be true, speaks constantly (that is, consistently with himself); he is always in the same story; he speaks in finem—to the end; people will give credit to him and hear him out; he speaks unto victory; he carries the cause, which the false witness shall lose; he shall speak to eternity. What is true is true eternally. The lip of truth is established for ever. MHBCC 650.27