This verse contains the reason for the Lord's action in the sin of Israel under the leadership of Solomon. It is because of the practice of idolatry. The reader will notice that the Lord’s words to Jeroboam are repetitive of his words to Solomon in pronouncing judgment on the king. In fact, the Lord’s direct words to Jeroboam are more detailed than the direct words he spoke to Solomon, because God specifically mentions the false gods that Israel has been led to worship. However, these same gods are mentioned by the writer as he explains the state of Solomon's worship near the end of his reign.
Why, we may ask, is there so much detail given to Jeroboam in explanation of the reason for Jeroboam receiving the ten tribes to rule over? The God of Israel is not simply imparting information to satisfy Jeroboam’s curiosity concerning the strange event of the torn garment. This also serves as a warning to Jeroboam that shows God's hatred of idolatry. If God is judging the Davidic dynasty for their idolatry, he will certainly do the same, if the new king follows Solomon’s example.
33 Et cela, parce qu'ils m'ont abandonné, et se sont prosternés devant Astarté, divinité des Sidoniens, devant Kemosch, dieu de Moab, et devant Milcom, dieu des fils d'Ammon, et parce qu'ils n'ont point marché dans mes voies pour faire ce qui est droit à mes yeux et pour observer mes lois et mes ordonnances, comme l'a fait David, père de Salomon.