4He appointed some of the Levites to minister before the ark of the Lord and to profess [God’s name] and to thank and praise the Lord, the God of Israel:
4He appointed some of the Levites to serve in front of the ark of the Lord. David wanted them to give honor, thanks and praise to the Lord. He is the God of Israel.
4Then David chose some Levites to serve the Lord at the Covenant Box. They would lead prayers and songs to thank the Lord, Israel's God, and to praise him.
4And he puts before the Ark of YHWH, those ministering from the Levites, even to make mention of, and to thank, and to give praise to YHWH, God of Israel: