179. "That bites the horse's heels" (Ibid.): This refers to Ira, who was with David, whose descent was from the tribe of Dan. Through his merit, David's might balanced in his favor, as it is written: "And David lamed all the chariot horses" (II Shmuel 8:4). "So that his rider shall fall backwards" (Beresheet 49:17) refers to Srayah, who will come with Messiah, son of Ephraim. He will be a descendant of Dan's tribe and he will take revenge and do wars with the rest of the nations. When this one rises, you will wait for the redemption of Yisrael, as it is written: "I wait for Your salvation, Hashem" (Ibid.). Although this verse has already been explained, the definition of it is as we mentioned and as was explained. The verse in the scripture is proof of this.