Midrash su Ezechiele 47:9

... Teach us o teacher: toward where should one who prays orient his heart? This is what our Rabbis taught: one should orient his heart toward the place of the Holy of Holies (Berachot 4:5). R’ Eliezer ben Yaakov says: if one is praying outside of the land, he should orient his heart to the land of Israel. If one is praying within the land of Israel, he should orient his heart to Jerusalem. If one is praying in Jerusalem, he should orient his heart to the Holy Temple. If one is praying in the Holy Temple, he should orient his heart to the Holy of Holies. R’ Avin the Levi said: “our neck is like the Tower of David, built as a model (talpiyot)…” (Song of Songs 4:4) What does talpiyot mean? The hill (tel) toward which all turns (peniyot) are directed. And after all this praise, it is written “Open your doors, O Lebanon, and let the fire consume your cedars.” (Zechariah 11:1) And so too they said “He has hurled fire into my bones…” (Lamentations 1:13) Israel said to Him: Master of the World! How long will it be like this? Did You not write in Your Torah “…the one who ignited the fire shall surely pay” (Exodus 22:5)? And You are the one who ignited the fire, as it says “From above He has hurled fire into my bones…” (Lamentations 1:13) You need to rebuild it and to console us, not at the hands of an angel but You in Your glory. The Holy One said to them: by your life, so I will do! As it says “The Lord is the builder of Jerusalem; He will gather the outcasts of Israel.” (Psalms 147:2) And I am the one who consoles you. From where do we learn this? From that which they read in the prophets “I, yea I am He Who consoles you…” (Isaiah 51:12)

Every field and vineyard which did not yield fruit, people water them with those waters and they yield fruit, as it is said, "And it shall come to pass, that every living creature which swarmeth, in every place whither the rivers come, shall live… for these waters are come thither, that all things may be healed and live" (Ezek. 47:9). Then (the waters) enter the Salt Sea and they heal it. And the waters "shall go towards the sea,… and the waters shall be healed" (Ezek. 47:8). And there they generate all kinds (of fish). The Scripture text (here) gives a general rule concerning the fish, that they will be as sweet as Manna. They ascend in the stream as far as Jerusalem, and there they are caught in its nets, as it is said, "And it shall come to pass that fishers shall stand by it" (Ezek. 47:10). It is written, "They shall stand by it."

Every man who is ill and bathes in those waters, will be healed, as it is said, "In every place whither the rivers come, he shall live… and every thing shall live whithersoever the river cometh" (Ezek. 47:9). Every man who has a wound will be healed by taking of their leaves and applying them to his wound, as it is said, "And the fruit thereof shall be for meat, and the leaf thereof for healing" (Ezek. 47:12). What is the meaning of "for healing"? Rabbi Jochanan said: For a laxative; || suck its leaves and one's food is digested.