John Gills Exposition of the Bible Commentary - Proverbs 21:28
A false witness shall perish ,.... As witness he shall perish in his reputation, no credit shall be given him, he shall not be admitted an evidence, or a witness in any cause, being found a false one; and as a man, he shall be punished in body or estate by the civil magistrate, and his soul shall perish eternally, unless he has true repentance for his sin: or, a witness of lies shall perish F11 עד כזבים "testis mendaciorum", Montanus, Junius & Tremellius, Cocceius, Gejerus,... read more
Matthew Henry's Complete Commentary - Proverbs 21:28
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... read more