C. F. Keil and Franz Delitzsch on 2 Chronicles 30:22

2Ch 30:22

Hezekiah spoke to the heart of all the Levites, i.e., spoke encouraging words of acknowledgment to all the Levites, “who showed good understanding in regard to Jahve,” i.e., not qui erant rerum divinarum peritiores aliosque instruere poterant, but, as Clericus has already said, those who had distinguished themselves by intelligent playing to the honour of the Lord. “And they ate” - not merely the Levites and priests, but all who took part in the festival - the festal sacrifices, seven days. The expression את־המּועד אכל, to hold the festal sacrificial meal, is formed after את־הפּסח אכל, to eat the passover = the passover meal. This we gather from the following participial clause, “offering peace-offerings,” of which the sacrificial meals were prepared. וּמתודּים, and acknowledged the Lord, the God of their fathers. הדותה denotes here neither “to make confession of sin,” nor “to approach with thank-offerings” (Berth.), but simply to acknowledge the Lord with heart and mouth, word and deed, or by prayer, praise, thanks, and offering of sacrifice.