And they sing the Shir of Moshe Rabbeinu, the eved Hashem, and the Shir of the Seh  Lamb, Yeshayah 53:7 , saying, "Great and marvelous are the ma'asim of you, Hashem Adonoi Tzva'ot; tzedek and Emes are the derakhim of you, the Melech kol HaGoyim. [Shemot 15:1; Yehoshua 1:1; Tehillim 111:2; 145:17]