Midrash su Isaia 51:9

(Deut. 1:1:) “These are the words (elleh hadevarim).” May the name [of the Holy One, blessed be He,] be blessed and may His memory be exalted. All the miracles that he did for Israel in the wilderness, He is likewise going to do in Zion. It is written concerning the wilderness (ibid.), “These are the words;” and it is written concerning Zion (in Is. 42:16), “I will turn darkness before them into light and rough places into level ground. These things (elleh hadevarim) I will do, and I will not forsake them.” It is written concerning the wilderness (in Exod. 20:15), “Now all the people saw the thunderings (qol in the plural)”; and it is written concerning Zion (in Jer. 33:11), “The sound (qol) of joy and the sound (qol) of gladness, [the voice (qol) of the bridegroom and the voice (qol) of the bride].” It is written concerning the wilderness (in Ps. 68:9), “The earth quaked”; and it is written concerning Zion (in Hag. 2:6), “I will cause the heavens and the earth to quake.” It is written concerning the wilderness (in Exod. 13:21), “And the Lord went before them by day”; and it is written concerning Zion (in Is. 52:12), “for the Lord shall go before you.” It is written concerning the wilderness (in Deut. 30:9), “for the Lord shall be glad over you again”; and it is written concerning Zion (in Is. 65:19), “I will also rejoice in Jerusalem and be glad in My people.” [Also (according to Is. 35:1),] “The wilderness and the arid land shall be glad.” What did Isaiah see to say this? It is simply that, when Israel transgressed the Torah, Hosea arose and said (in Hos. 2:5), “I will make her like a wilderness and render her like an arid land.” For that reason Isaiah has said (in Is. 35:1), “The wilderness and the arid land shall be glad.” Now all the consolations of which Isaiah spoke are double, because (according to Is. 40:2) “she (i.e., Jerusalem) has received from the hand of the Lord double for all her sins.”¹Lam. R. 1:22. So for that reason the consolations are double (in vs. 1) “Comfort, O comfort My people.” [Similarly (in Is. 51:12),] “I, I am the one who comforts you.” [Also (in Is. 51:9),] “Awake, awake.” [Also (in Is. 51:17),] “Rouse yourself, rouse yourself!” [Also] (in Is. 61:10),] “I will be glad with rejoicing.” [Also] (in Is. 35:2),] “It shall blossom with blossoms.” Another interpretation (of Is. 35:1), “The wilderness and the arid land shall be glad.” For what reason was this written? To teach you that when the Holy One, blessed be He, reveals His Divine Presence over Israel, He does not reveal it all to them on one occasion, because they would not have been able to persevere in this bounty all at once; for if He had revealed His bounty to them at one time, they would all have died. See what is written (in Is. 64:3), “From time immemorial they have not heard, nor has an ear perceived, nor has an eye seen a God besides you, who works for those who wait for him.” Go and learn from Joseph; for when he made himself known to his brothers after so many years, [when] Joseph said to them (in Gen. 45:3), “I am Joseph,” they all died, “and they could not answer him; [for they were dismayed because of him].” How much the more [would Israel be dismayed] at [a sudden revelation of] the Holy One, blessed be He! So what does the Holy One, blessed be He, do for them instead? He reveals himself to them little by little. At the beginning, He makes the mountains glad, as stated (in Is. 35:1), “The wilderness and the arid land shall be glad.” Then after that (ibid.), “the steppes shall rejoice […].” Then after that (in vs. 2), “It shall bloom abundantly.” Then after that (ibid.), “the glory of Lebanon shall be given to it.” Then after that (ibid.), “they shall see the glory of the Lord, the splendor of our God.” For that reason David said (in Ps. 102:17), “For the Lord has built up Zion; He has appeared in His glory.” It also says (in Is. 52:8), “for eye to eye they will see the return of the Lord to Zion.” And it also says (in Is. 25:9), “In that day they shall say, ‘See, this is our God; we waited for Him, and He delivered us; [this is the Lord; we waited for Him, let us rejoice and be glad in His salvation.’”

Another interpretation (of Ps. 24:8 & 10): WHO IS THIS KING OF GLORY? Who is he? This is the king who distributes glory to those who fear him (according to vs. 10, cont.): THE LORD OF HOSTS, <HE IS THE KING OF GLORY>.⁴⁵Tanh., Exod. 2:8; M. Pss. 21:2; below, Numb. 2:24; 3:15; and the other parallels listed there. In what way? In the case of a king of flesh and blood, no one sits on his throne;⁴⁶See Sanh. 2:5, which affirms this royal prerogative along with the two which follow. yet the Holy One had Solomon sit on his throne. It is so stated (in I Chron. 29:23): THEN SOLOMON SAT UPON THE THRONE OF THE LORD. In the case of a king of flesh and blood, no one rides upon his horse; yet the Holy One had Elijah ride on his horse. Now what is the horse of the Holy One? Whirlwind and storm, as stated (in Nahum 1:3): THE LORD IS IN THE WHIRLWIND, AND THE STORM IS HIS ROAD.⁴⁷Tanh., Exod. 2:8; Exod. R. 8:1; M. Pss. 21:2; and below, Numb. 2:34, all cite II Kings 2:11 here to show when Elijah rode the whirlwind of the Holy One. In the case of a king of flesh and blood, no one uses his scepter; yet Moses used the scepter of the Holy One. It is so stated (in Exod. 4:20): AND MOSES TOOK THE ROD OF GOD IN HIS HAND. In the case of a king of flesh and blood, no one puts on his crown; yet the Holy One has given crowns to the Messianic King. It is so stated (in Ps. 21:4): YOU HAVE SET ON HIS HEAD A CROWN OF FINE GOLD. In the case of a king of flesh and blood, no one puts on his robes; yet Israel has put on the Holy One's robes, <i.e.,> strength. It is so stated (in Is. 51:9): AWAKE, AWAKE, PUT ON STRENGTH, O ARM OF THE LORD; and he has given it to Israel, as stated (in Ps. 29:11): THE LORD WILL GRANT STRENGTH TO HIS PEOPLE. In the case of a king of flesh and blood, no one calls <anyone else> by his title, as <for example> Caesar, Augustus, <or> King;⁴⁸Gk.: Basileus. and, if a certain person calls anyone by one of them, he will not live. Do you yourself know a person who calls his friend Augusta so-and-so? But the Holy One said to Moses: See, I have made you like me to Pharaoh. I am called God; and in that name I created the world, as stated (in Gen. 1:1): IN THE BEGINNING GOD CREATED THE HEAVENS AND THE EARTH. And here I have made you like me, a god to Pharaoh. Thus it is stated (in Exod. 7:1) SEE, I HAVE SET YOU AS A GOD TO PHARAOH. Ergo (in Ps. 24:8 & 10): WHO IS THIS KING OF GLORY? The one who distributes glory to those who fear him.

(Exodus 14:15) "And the L rd said to Moses: Why do you cry out to Me?" R. Yehoshua says: The Holy One Blessed be He said to Moses: Moses, all that Israel has to do is to go forward. R. Eliezer says: The Holy One Blessed be He said to Moses: Moses, My children are in trouble. The sea is raging and the foe is pursuing and you stand and prolong your prayers? For R. Eliezer was wont to say: There is a time to prolong (prayer) and a time to shorten. (Numbers 12:13) "G d, I pray You, hear her" — to shorten. (Devarim 9:18) "And I fell down before the L rd (in prayer) as at first, forty days and forty nights" — to prolong. R. Meir says: If for Adam, who was alone, I made dry land (viz. Genesis 1:9), for this assembly of holy ones shall I not make dry land? R. Yishmael says: In the merit of Jerusalem I will split the sea for them, as it is written (Isaiah 52:1) "Awake, awake, clothe yourself in splendor, O Zion. Don your robes of glory, O Jerusalem, holy city. For there will not again enter you the uncircumcised and the unclean", and (Ibid. 51:9-10) "Awake, awake, clothe yourself in splendor, O arm of the L rd. Awake as in days of old, as in generations of yore … Is it not You that dried up the sea, the waters of the great deep, a road for the redeemed to cross?" Variantly: Because of My promise to their father Abraham I will split the sea for them, viz. (Genesis 28:14) "And your seed shall be as the dust of the earth, ufaratzta yamah vakedma", "ufaratzta yamah" intimating the splitting of the sea. R. Yehudah b. Betheirah says: The Holy One Blessed be He said to him: I have already fulfilled My promise to your father Abraham, viz. (Exodus, Ibid. 21) "and He made the sea into the dry land" (that He had promised to Abraham)