Kabbalah zu Bereschit 22:3

And on it rode Elijah, and was taken to heaven, as it is written: "And Elijah went up to heaven in a whirlwind" (II Kings 2:11). And on it [Yov was answered] And Y"HVH answered Job from the whirlwind. And because of this the rabbis taught in the Mishnah: "who is strong? The one who conquers their impulses" (Avot 4:1). And there are those who are able to beautify their donkey, and it does not upset its rider. In that sense it is written about Avraham "and he saddled his donkey" (Genesis 22:3). And regarding the Mashiach it is said: "A poor person, riding on a donkey" (Zechariah 9:9).

And that moment it was difficult in front of Him, to pass through the way of judgment. And behold Israel were spread out as it is written (Exodus 14:15) "And Y'Y said to Moshe: why are you crying out to Me? Tell the children of Israel to go!" And it was hard for Him to go through with the judgment, and to part the Sea of Reeds to them, and were it not for the Holy Blessed One considering the merit of Avraham, who woke up early in the morning to obey/serve the commandment of the Master and His pleasure, as it is written "And Avraham woke up in the morning" all of them would have perished in the sea, because of the judgment that the Holy Blessed One had against Israel.