Now for a long season Israel hath been without the true God, and without a teaching priest, and without law. Now for a long season Israel - "Israel hath followed Jeroboam, and they have not worshipped the true God. They have burnt incense to their golden calves; their priestlings [כומריא cumeraiya, their black, sooty sacrificers] have burnt perfumes with a strange worship, and have not exercised themselves in the law." - Targum. These priests could not teach, because they had not learnt; and as they had abandoned the law of the Lord, consequently they had no proper matter for instruction.
There is a great diversity of opinions concerning the meaning of this text. Some consider it a prophecy relative to the future state of this people, and the final destruction of the Jews as to their political existence: others consider it as referring to the state of the people under the reigns of Rehoboam and Abijah, which were happily changed under that of Asa; and this appears to me to be the most natural sense of the words.