NET

20 David told the entire assembly: “Praise the Lord your God!” So the entire assembly praised the Lord God of their ancestors; they bowed down and stretched out flat on the ground before the Lord and the king.

Darby

20 And David said to all the congregation, Bless now Jehovah your God. And all the congregation blessed Jehovah the God of their fathers, and bowed down their heads, and did homage to Jehovah and the king.

KJV

20 And David said to all the congregation, Now bless the LORD your God. And all the congregation blessed the LORD God of their fathers, and bowed down their heads, and worshipped the LORD, and the king.