Matthew Henry on 1 Kings 14:21-31

Here is no good said of Rehoboam, and much said to the disadvantage of his subjects. The abounding of the worst crimes, of the worst of the heathen, in Jerusalem, the city the Lord had chosen for his temple and his worship, shows that nothing can mend the hearts of fallen men but the sanctifying grace of the Holy Spirit. On this alone may we depend; for this let us daily pray, in behalf of ourselves and all around us. The splendour of their temple, the pomp of their priesthood, and all the advantages with which their religion was attended, could not prevail to keep them close to it; nothing less than the pouring out the Spirit will keep God's Israel in their allegiance to him. Sin exposes, makes poor, and weakens any people. Shishak, king of Egypt, came and took away the treasures. Sin makes the gold become dim, changes the most fine gold, and turns it into brass.