Verse 17. So they strengthened the kingdom of Judah - Not only by the addition of so many persons to it: but by their piety and prayers they procured a blessing upon the kingdom which was a sanctuary to them. They made him strong three years; for so long he served God; but when he forsook God, none could strengthen him. We retain our strength as long as we cleave to God and our duty, and no longer. And Solomon - This honourable mention of Solomon, as a pattern of piety, is a considerable evidence of his true repentance before his death.
Verse 22. Ruler - He declared him his successor, and gave him the dominion over, his brethren.
Verse 23. Dispersed - Lest his other sons should after his death unite together against Abijah, he wisely dispersed them into distant places.