The Popular Commentary by Paul E. Kretzmann - Proverbs 18:9
v. 9. He also that is slothful in his work, who does not apply himself to it with all diligence, is brother to him that is a great waster, a squanderer; the two are closely related, since in either case possessions are lost. read more
George Haydock's Catholic Bible Commentary - Proverbs 18:9
Brother. Like him, as both end in poverty, chap. x. 4., and xii. 11. read more