14 Now the Lord raised up an adversary against Solomon, Hadad the Edomite; he was a descendant of the king in Edom. 15 For it happened, when David was in Edom, and Joab the commander of the army had gone up to bury the slain, after he had killed every male in Edom 16 (because for six months Joab remained there with all Israel, until he had cut down every male in Edom),
Matthew Henry's Commentary on 1 Kings 11:14-16
Commentary on 1 Kings 11:14-25
(Read 1 Kings 11:14-25)
While Solomon kept close to God and to his duty, there was no enemy to give him uneasiness; but here we have an account of two. If against us, he can make us fear even the least, and the very grasshopper shall be a burden. Though they were moved by principles of ambition or revenge, God used them to correct Solomon.