NET
7 He collaborated with Joab son of Zeruiah and with Abiathar the priest, and they supported him.
Darby
7 And he conferred with Joab the son of Zeruiah, and with Abiathar the priest; and they helped Adonijah and followed [him].
KJV
7 And he conferred with Joab the son of Zeruiah, and with Abiathar the priest: and they following Adonijah helped [him].