John Gills Exposition of the Bible Commentary - Proverbs 18:19
A brother offended is harder to be won than a strong city ,.... A fortified city may sooner be taken by an enemy, than one brother offended can be reconciled to another; their resentments against each other are keener than against another person that has offended them; and their love being turned into hatred, it is more bitter; and it is more difficult to compose differences between brethren than between enemies; wherefore such should take care that they fall not out by the way: this is... read more
Matthew Henry's Complete Commentary - Proverbs 18:19
Note, 1. Great care must be taken to prevent quarrels among relations, and those that are under special obligation to each other, not only because they are most unnatural and unbecoming, but because between such things are commonly taken most unkindly, and resentments are apt to be carried too far. Wisdom and grace would indeed make it most easy to us to forgive our relations and friends if they offend us, but corruption makes it most difficult to forgive them; let us therefore take heed of... read more