Devarim 31:17-19

Orthodox Jewish Bible

¹⁷ Then My anger shall be kindled against them in Yom Hahu, and I will forsake them, and I will hide My face from them, and they shall be devoured, and ra’ot rabbot (many evils) and tzarot (troubles) shall befall them; so that they will say in Yom Hahu, Are not these evils come upon us, because Elohai is not among us?

¹⁸ And I will surely hide My face in Yom Hahu for kol hara’ah which they shall have done, in that they are turned unto elohim acherim.

¹⁹ Now therefore write ye this shirah for you, and teach it the Bnei Yisroel; put it in their mouths, in order that this shirah may be an ed (witness) for Me against the Bnei Yisroel.