Matthew Henry Commentary Proverbs 13:9

"The light of the righteous rejoiceth; But the lamp of the wicked shall be put out." — Proverbs 13:9 (ASV)

The light of the righteous is like that of the sun, which may be eclipsed and clouded, but will continue: the Spirit is their Light, and He gives a fullness of joy; that of the wicked is like a lamp of their own kindling, easily put out.