And he was an adversary to Israel all the days of Solomon,.... Not all the days of his life, see 1 Kings 5:4, but all his days, from his first going into idolatry, to the end of his life:

beside the mischief that Hadad did; and which, whatever it was, was not done till this time; for either, when he got leave from Pharaoh to go into his country, he lay hid there, waiting an opportunity to seize upon it; or by means of Pharaoh he got himself to be king of it, through the permission of Solomon, paying a tribute to him; but when Solomon was grown old, he revolted and refused to pay it, and rebelled against him, and gave him much trouble:

and he abhorred Israel, and reigned over Syria; not Hadad, but Rezon; he had an aversion to them, was a thorn in their side, and gave them much trouble, as well as had them in contempt, and bid them defiance, having made himself not only master of Damascus, but of all Syria.

And he was an adversary to Israel all the days of Solomon, beside the mischief that Hadad did: and he abhorred Israel, and reigned over Syria.

11:25 All adversity - He was a secret enemy, all that time; and when Solomon had forsaken God, he shewed himself openly. Beside - This infelicity was added to the former; whilst Hadad molested him in the south, Rezon threatened him in the north. But what hurt could Hadad or Rezon have done, to so powerful a king as Solomon, if he had not by sin made himself mean and weak? If God be on our side, we need not fear the greatest adversary. But if he be against us, he can make us fear the least: yea, the grasshopper shall be a burden. Syria - Over all that part of Syria, enlarging his empire the more, and thereby laying a foundation for much misery to Solomon's kingdom.

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.