Proverbs 29:24 - Albert Barnes' Notes on the Bible

On the first discovery of the theft, the person wronged Judges 17:2, or the judge of the city (marginal reference), pronounced a solemn curse on the thief and on all who, knowing the offender, were unwilling to give evidence against him. The accomplice of the thief hears that curse, and yet is silent, and so falls under it, and “destroys his own soul.”