Мидраш к Тегилим 147:2

The Lord has sworn by His right hand and by the arm of His strength (Isa. 62:8). By his right hand refers to the Torah, as it is said: His right hand was a fiery law unto them (Deut. 33:2). And by the strength of His arms alludes to the tefillin (phylacteries), as it is said: The Lord will give strength unto His people (Ps. 29:11). Surely I will no more give thy corn to be food for thine enemies … in the courts of My sanctuary (Isa. 68:8–9) refers to Jerusalem. What oath did He proclaim in reference to Jerusalem? He vowed that He Himself would build it, as it is said: The Lord doth build up Jerusalem; He gathered together the dispersed of Israel (Ps. 147:2).

R. Samuel the son of Nahmani stated: There is an aggadic tradition which states that Jerusalem will not be rebuilt until the dispersed of Israel are gathered together. However, if one should tell you: The exiles are already gathered together and Jerusalem still hath not been rebuilt, believe him not, for it is written: The Lord doth build up Jerusalem, and after that Scripture says: He gathered together the dispersed of Israel (ibid. 147:2).

“To whom the word of the Lord came… until the end of eleven years of Zedekiah son of Josiah, king of Judah, until the exile of Jerusalem in the fifth month.” (Jeremiah 1:2-3) R’ Avon said: the lion (ari) came up during the constellation of the lion and destroyed Ariel. ‘The lion came up’ refers to Nebuchadnezzar the wicked, as it is written “A lion has come up from his thicket…” (Jeremiah 4:7) ‘In the constellation of the lion’, “…until the exile of Jerusalem in the fifth month.” (Jeremiah 1:3) ‘And destroyed Ariel’, “Woe, Ariel, Ariel, the city wherein David encamped!” (Isaiah 29:1) This happened in order that the lion would come in the constellation of the lion and rebuild Ariel. ‘The lion would come’ refers to the Holy One, as it is written “A lion has roared; who will not fear?” (Amos 3:8) ‘In the constellation of the lion’, “…and I will turn their mourning into joy…” (Jeremiah 31:12) ‘And rebuild Ariel’, “The Lord is the builder of Jerusalem; He will gather the outcasts of Israel.” (Psalms 147:2)