15 For when David was in Edom, and Joab the commander of the army went up to bury the dead, he killed every male in Edom

Matthew Henry's Commentary on 1 Kings 11:15

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.