5 Hymn Hashem, For He has done gloriously; Let this be made known In all the world!
za-m’-RU a-do-NAI KEE gay-UT a-SAH mu-DA-at ZOT b’-khol ha-A-retz
ה זַמְּרוּ יְהֹוָה כִּי גֵאוּת עָשָׂה מידעת [מוּדַעַת] זֹאת בְּכָל־הָאָרֶץ׃
12:5 Hymn Hashem, for He has done gloriously
The Talmud (Sanhedrin 94a) states that after Yehuda’s miraculous deliverance from the Assyrian invasion, Hashem desired to crown the righteous king Chizkiyahu as the Mashiach. Only one thing was required — that Chizkiyahu sing a song of praise before Him. Instead, though, Chizkiyahu arose that morning, and continued with his regular daily routine, the study of the Torah, until Yeshayahu instructed him to sing. Unfortunately, as the song was not spontaneous but rather came as a response to a command, the opportunity was lost. In this verse, Yeshayahu teaches the importance of appreciating everything that occurs for us, and being able to sing praise for it before Hashem.