70. "...And said to me, 'Behold, I will make you fruitful, and multiply you'" (Beresheet 48:4). Rabbi Aba opened the discussion speaking in relation to the verse, "Jacob shall not now be ashamed, neither shall his face now grow pale" (Yeshayah 29:22). A man who promises good for another man will be ashamed not to keep his promise. How much more so is A PROMISE come to man from above. If He brings not the goodness to his children that he said he would, He will be ashamed.
71. The Holy One, blessed be He, said TO JACOB, "'Behold, I will make you fruitful, and multiply you" by this blessing given to Me FROM BINAH. And I will give this land to your children.' Yet HIS CHILDREN are not in the land of Yisrael, nor is THE HOLY ONE, BLESSED BE HE, with them. THIS IS SUPPOSEDLY SHAMEFUL THAT HE PROMISES YET DOES NOT KEEP IT. But when the Messiah's end will come AND HIS PROMISE will be fulfilled, the Holy One, blessed be He, said, "Jacob shall not now be ashamed." Now the face of supernal Jacob will not be put to shame, because of what he said "and will give THIS LAND TO YOUR SEED AFTER YOU" (Beresheet 48:4). For until now, he had naught in his hand to give them, and he was ashamed. Now his promise was kept before the Master of heaven and earth.
72. As we said, the war against Amalek will be by strength of hand alone when the end will come, for it is a day for battle, as is written, "Then shall Hashem go out, and fight against those nations, AS WHEN HE FOUGHT IN THE DAY OF BATTLE," He Himself shall go out, and none other.