Remained faithful to David in Adonijah's rebellion. Ewald makes Rei as Shimei, David's brother. Raddad (1 Kings 1:8). Jerome (Quaest. Hebrew) makes him "Hiram the Zairite," i.e. "Ira the Jairite."
Bibliography Information Fausset, Andrew Robert M.A., D.D., "Definition for 'Rei' Fausset's Bible Dictionary". bible-history.com - Fausset's; 1878.