וְהַכֹּהֲנִ֞ים עַל־מִשְׁמְרוֹתָ֣ם עֹמְדִ֗ים וְהַלְוִיִּ֞ם בִּכְלֵי־שִׁ֤יר יְהוָה֙ אֲשֶׁ֨ר עָשָׂ֜ה דָּוִ֣יד הַמֶּ֗לֶךְ לְהֹד֤וֹת לַיהוָה֙ כִּֽי־לְעוֹלָ֣ם חַסְדּ֔וֹ בְּהַלֵּ֥ל דָּוִ֖יד בְּיָדָ֑ם וְהַכֹּהֲנִים֙ מחצצרים [מַחְצְרִ֣ים] נֶגְדָּ֔ם וְכָל־יִשְׂרָאֵ֖ל עֹמְדִֽים׃ (ס)
Os sacerdotes estavam em pé nos seus postos, como também os levitas com os instrumentos musicais do SENHOR, que o rei Davi tinha feito para dar graças ao SENHOR (porque a sua benignidade dura para sempre), quando Davi o louvava pelo ministério deles; e os sacerdotes tocavam trombetas diante deles; e todo o Israel estava em pé.
Rashi on II Chronicles
And the priests...on their watches as David had divided them into twenty-four watches, for each watch to serve its week, and the Levites likewise on their twenty-four watches
Rashi on II Chronicles
to give thanks with musical instruments, for they recited (Ps. 136): “Give thanks to the Lord for He is good, for His loving kindness is eternal.”
Rashi on II Chronicles
with David’s praise The musical instruments with which they recited David’s praise and the thanksgivings were in the Levites’ hands.