A brother wronged is more unyielding than a fortified city; disputes are like the barred gates of a citadel.
OJBA brother offended is harder to be won than a strong city, and their contentious quarrelings are like the bars of an armon (citadel).
T4TIf you help relatives, they will protect you like [SIM] a strong wall protects a city, but if you quarrel with them, that will separate you from them like bars on a city gate separate the city from those who want to enter it [MET].