211. It is written, "A Psalm, Sing to Hashem a new song" (Tehilim 98:1). We have already established this praise. Although we have observed it, the observations of the friends who observed about this is THAT THEY SAID that the cows that were transporting the Ark rose to recite this praise, as it is written, "And the cows took the straight (also: 'sang') way" (I Shmuel 6:12). What was the song that they were reciting? It was, "Sing to Hashem a new song; for He has done marvelous things." This secret is similar to above for at the time the living creatures carry the throne, WHICH IS MALCHUT to raise it above, TO ZEIR ANPIN they recite this praise.
212. If you ask, Why is it written here "new," FOR IT IS WRITTEN "A NEW SONG?" Are they not constantly saying this praise? HE ANSWERS, Certainly it is new, for it is called 'new' only with the renewal of the moon, WHICH IS MALCHUT, when it illuminates from the sun, WHICH IS ZEIR ANPIN. Then it is new, and this is "a new song," FOR EACH TIME MALCHUT ASCENDS TO PAIR WITH ZEIR ANPIN, SHE IS TRANSFORMED TO BECOME NEW, IN ACCORDANCE WITH THE SECRET, THAT EVERY TIME SHE REVERTS TO BEING A VIRGIN. "His right hand, and His holy arm have gained Him the victory" (Tehilim 98:1): This is the arousal of right and left, WHICH ARE CHESED AND GVURAH, to receive Her.
213. They did praise Him with this praise when they carried the Ark and were going up to Bet Shemesh, like the wagons (also: 'heifers'), WHICH IS THE SECRET OF THE LIVING CREATURES. They went up to Bet Shemesh, WHICH IS THE SECRET OF ZEIR ANPIN THAT IS CALLED 'SHEMESH (ENG. 'SUN'),' and it all amounts to the same, for the elevation of the Throne, WHICH IS MALCHUT, to ascend above occurs on Shabbat. THEREFORE, the order of this praise is on the Shabbat. All these praises were composed for Shabbat, for the unique nation of the world to praise Him.