1 And in that day thou shalt say: ‘I will give thanks unto Thee, O Hashem; for though Thou was angry with me, Thine anger is turned away, and Thou comfortest me.
א וְאָמַרְתָּ בַּיּוֹם הַהוּא אוֹדְךָ יְהוָה כִּי אָנַפְתָּ בִּי יָשֹׁב אַפְּךָ וּתְנַחֲמֵנִי.
2 Behold, God is my salvation; I will trust, and will not be afraid; for GOD Hashem is my strength and song; and He is become my salvation.’
ב הִנֵּה אֵל יְשׁוּעָתִי אֶבְטַח וְלֹא אֶפְחָד כִּי עָזִּי וְזִמְרָת יָהּ יְהוָה וַיְהִי לִי לִישׁוּעָה.
3 Therefore with joy shall ye draw water out of the wells of salvation.
ג וּשְׁאַבְתֶּם מַיִם בְּשָׂשׂוֹן מִמַּעַיְנֵי הַיְשׁוּעָה.
4 And in that day shall ye say: ‘Give thanks unto Hashem, proclaim His name, declare His doings among the peoples, make mention that His name is exalted.
ד וַאֲמַרְתֶּם בַּיּוֹם הַהוּא הוֹדוּ לַיהוָה קִרְאוּ בִשְׁמוֹ הוֹדִיעוּ בָעַמִּים עֲלִילֹתָיו הַזְכִּירוּ כִּי נִשְׂגָּב שְׁמוֹ.
5 Sing unto Hashem; for He hath done gloriously; this is made known in all the earth.
za-m’-RU a-do-NAI kee gay-UT a-SAH mu-DA-at zot b’-KHOL ha-A-retz
ה זַמְּרוּ יְהוָה כִּי גֵאוּת עָשָׂה מידעת (מוּדַעַת) זֹאת בְּכָל הָאָרֶץ.
12:5 Sing unto the LORD; for He hath done gloriously
An ancient Jewish tradition states that after the miraculous deliverance of Judah from the Assyrian invasion, God desired to crown the righteous king Hezekiah messiah. Only one thing was required – that Hezekiah would sing a song of praise before Him. Instead, Hezekiah arose that morning, and continued with his regular daily routine, the study of the Torah, until Isaiah instructed him to sing. Unfortunately, once the singing was a response to a command, and not spontaneous, the opportunity was lost. In this verse, Isaiah teaches the importance of appreciating everything that occurs for us, and being able to sing praise for it before God.