A false witness shall not be unpunished, and he that speaketh lies shall perish.

Matthew Henry's Concise Commentary

19:3. Men run into troubles by their own folly, and then fret at the appointments of God. 4. Here we may see how strong is men's love of money. 5. Those that tell lies in discourse, are in a fair way to be guilty of bearing false-witness. 6. We are without excuse if we do not love God with all our hearts. His gifts to us are past number, and all the gifts of men to us are fruits of his bounty. 7. Christ was left by all his disciples; but the Father was with him. It encourages our faith that he had so large an experience of the sorrows of poverty. 8. Those only love their souls aright that get true wisdom. 9. Lying is a damning, destroying sin. 10. A man that has not wisdom and grace, has no right or title to true joy. It is very unseemly for one who is a servant to sin, to oppress God's free-men.

Matthew Henry's Whole Bible Commentary

Verse 9

Here is, 1. A repetition of what was said before (v. 5), for we have need to be again and again warned of the danger of the sin of lying and false-witness-bearing, since nothing is of more fatal consequence. 2. An addition to it in one word; there it was said, He that speaks lies shall not escape, and intimated that he shall be punished. Here it is said, His punishment shall be such as will be his destruction: he shall perish; the lies he forged against others will be his own ruin. It is a damning destroying sin.