2 Samuel 4:2

And Saul’s son had two men that were captains of bands: the name of the one was Baanah, and the name of the other Rechab, the sons of Rimmon a Beerothite, of the children of Benjamin: (for Beeroth also was reckoned to Benjamin:

Cross-reference

Joshua 9:17 identifies Beeroth as one of the Gibeonite cities, explaining the background of the Beerothite assassins here.

Joshua 18:25 lists Beeroth among Benjamite cities, confirming the tribal identity noted in this verse.