Theodoret of Cyrus
He instructs everyone to join in the singing, to bow down together, and to render their devotion.
And David commanded all the assembly: Bless ye the Lord our God. And all the assembly blessed the Lord the God of their fathers: and they bowed themselves and worshipped God, and then the king.
וַיֹּ֤אמֶר דָּוִיד֙ לְכָל־הַקָּהָ֔ל בָּֽרְכוּ־נָ֖א אֶת־יְהוָ֣ה אֱלֹהֵיכֶ֑ם וַיְבָרֲכ֣וּ כָֽל־הַקָּהָ֗ל לַיהוָה֙ אֱלֹהֵ֣י אֲבֹֽתֵיהֶ֔ם וַיִּקְּד֧וּ וַיִּֽשְׁתַּחֲו֛וּ לַיהוָ֖ה וְלַמֶּֽלֶךְ׃
One Church Father comments on this verse
He instructs everyone to join in the singing, to bow down together, and to render their devotion.
Passages read together with this verse.