Then David said to the whole assembly, "Praise the LORD your God." So they all praised the LORD, the God of their fathers; they bowed down, prostrating themselves before the LORD and the king. (NIV)
And David said to all the assembly, Now adore (praise and thank) the Lord your God! And all the assembly blessed the Lord, the God of their fathers, and bowed down and did obeisance to the Lord and to the king [as His earthly representative]. (AMP)
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. (KJV)