C. F. Keil and Franz Delitzsch on 2 Kings 23:3

2Ki 23:3

The king stood העמּוּד על, as in 2Ki 11:14. For וגו ויּכרת see 2Ki 11:17. ללכת, i.e., he bound himself solemnly to walk after the Lord, that is to say, in his walk to follow the Lord and keep His commandments (see at 1Ki 2:3). - בּבּרית...ויּעמוד, all the people entered into the covenant (Luther and others); not perstitit, stood firm, continued in the covenant (Maurer, Ges.), which would be at variance with Jer 11:9-10; Jer 25:3., and other utterances of the prophets. 2 Kings 23:4-20 The eradication of idolatry. - According to 2Ch 34:3-7, this had already begun, and was simply continued and carried to completion after the renewal of the covenant.