וַֽ֠יַּעֲנוּ בְּהַלֵּ֨ל וּבְהוֹדֹ֤ת לַֽיהוָה֙ כִּ֣י ט֔וֹב כִּֽי־לְעוֹלָ֥ם חַסְדּ֖וֹ עַל־יִשְׂרָאֵ֑ל וְכָל־הָעָ֡ם הֵרִיעוּ֩ תְרוּעָ֙ה גְדוֹלָ֤ה בְהַלֵּל֙ לַֽיהוָ֔ה עַ֖ל הוּסַ֥ד בֵּית־יְהוָֽה׃ (ס)
And they sang one to another in praising and giving thanks unto the LORD: ‘for He is good, for His mercy endureth for ever toward Israel.’ And all the people shouted with a great shout, when they praised the LORD, because the foundation of the house of the LORD was laid.
Rashi on Ezra
And they sang aloud Heb. וַיַעֲנוּ, an expression of raising the voice in song, like (Exod. 15: 21): “And Miriam raised her voice in song to them.”