מדרש אויף ישעיהו 52:1

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?"

R. Shimon b. Yochai says: The sun and the moon testify that I have already split the sea for them, viz. (Jeremiah 31:35) "Thus said the L–rd who gives the sun for light by day, the laws of moon and stars for light by night, who splits the sea and stuns its waves — the L–rd of hosts is His name."

Everything fortunate that occurred to Joseph likewise happened to Zion. It is written of Joseph: And Joseph was of beautiful form and fair to look upon (Gen. 39:6), and of Zion it is stated: Fair in situation, the joy of the whole earth (Ps. 48:3). Concerning Joseph it is written: He is not greater in this house than I (Gen. 39:9), and of Zion: The glory of this latter house shall be greater than that of the former (Hag. 2:9). Joseph: The Lord was with him (Gen. 39:2), Zion: And My eyes and My heart shall be there (II Chron. 7:15). Joseph: And showed kindness unto him (Gen. 39:21), Zion: I remember for thee the affection of thy youth (Jer. 2:2). Joseph: And he shaved himself and changed his raiment (Gen. 41:14), Zion: And the Lord shall have washed away (Isa. 44:4). Joseph: Only in the throne will I be greater than thou (Gen. 41:40), Zion: At that time they shall call Jerusalem the throne of the Lord (Jer. 3:17). Joseph: And arrayed him in vestures of fine linen (Gen. 41:42), Zion: Awake, awake, put on thy strength, O Zion; put on thy beautiful garments (Isa. 52:1). Joseph: He sent Judah before him (Gen. 46:29), Zion: Behold, I send My messenger (Mal. 3:1).