NET
18 Jehu assembled all the people and said to them, “Ahab worshiped Baal a little; Jehu will worship him with great devotion.
Darby
18 And Jehu gathered all the people together, and said to them, Ahab served Baal a little: Jehu will serve him much.
KJV
18 And Jehu gathered all the people together, and said unto them, Ahab served Baal a little; [but] Jehu shall serve him much.