Midrash su Salmi 12:6

PREMUNDANE CREATION, AND THE WORK OF THE FIRST DAY
R. ELIEZER BEN HYRḲANOS opened (his discourse with the text), "Who can utter the mighty acts of the Lord, or shew forth all his praise?" (Ps. 106:2). Is there any man who can utter the mighty acts of the Holy One, blessed be He, or who can shew forth all His praise? Not even the ministering angels are able to narrate (the Divine praise). But to investigate a part of His mighty deeds with reference to what He has done, and what He will do in the future (is permissible), so that His name should be exalted among His creatures, whom He has created, from one end of the world || to the other, as it is said, "One generation to another shall laud thy works" (Ps. 145:4).

... …and the Holy One said to Israel, ‘my children – now take from me the cup of consolation.’ They replied to Him ‘Master of the World! You were angry with us and brought us out from within Your house and exiled us among the nations of the world [and that is like a vessel cast aside among the nations of the world] and now you’ve come to appease us?! He said to them, ‘I will give you an allegory, to what is this thing to be likened? To a man who married his sister’s daughter. He grew angry with her and sent her out of his house, and after some days came to appease her. She said to him ‘you were angry with me and threw me out of your house and now you’ve come to appease me?!’ He said to her, ‘you are are my sister’s daughter, maybe you will say in your heart that from the day that you went out of my house [another woman entered in, by your life] even I have not entered my house.’ Thus the Holy One said to Israel, ‘my children, from the day I destroyed My house below I have not gone up and sat in My house above. Rather, I sat in the dew and the rain. If you do not believe me place your hands in My head [and see the dew which is on My head, if it were not an explicit verse it would be impossible to say] as it says “…for my head is full of dew, my locks with the drops of the night.” (Shir HaShirim 5:2) And the Holy One clothed Zion with her strength, in reward for “The Eternal's strength and His vengeance were my salvation…” (Shemot 15:2) which they said at the sea, [and from where do we learn that the Holy One clothes her in her strength?] as it says “Awaken, awaken, put on your strength, O Zion…” (Yeshayahu 52:1)

The ministering angels asked: Who is the one who caused the Shekhinah to depart from Israel? He replied: I have removed My Shekhinah from such-and-such place in which I have beheld a judge perverting justice, and I have forsaken that place, as is said: For the oppression of the poor, for the sighing of the needy, now will I arise, saith the Lord; I will set him in safety at whom they puff (Ps. 12:6). What does the Holy One, blessed be He, do? He unsheathes His sword before the judge to remind him that there is a judge on high, as is said: Be ye afraid of the sword; for wrath bringeth the punishments of the sword, that ye may know there is a judgment (Job 19:29). Shadin (“judgment, involvement”) is written here to indicate (by its similarity to Shaddai [Almighty]) that when a judge judges truthfully, the Shekhinah does not depart form that place, as it is said: When the Lord raised them up judges, then the Lord was moved to judge, and save them out of the hands of their enemies, all the days of the judge (Judg. 2:18). Thus it is written: Keep ye justice, and do righteousness; for My salvation is here to come (Isa. 56:1), that is, then I will associate Myself with you.

R. Samuel the son of Nahmani said: R. Jonathan declared: Every judge who renders a just verdict causes the Shekhinah to hover over Israel, as it is said: God standeth in the congregation of God. But every judge who renders an unjust verdict causes the Shekhinah to depart, as it is said: For the oppression of the poor, for the sighing of the needy, now will I arise, saith the Lord (Ps. 12:6). R. Samuel the son of Nahmani said: From every judge who takes money from one and gives it to another unjustly, the Holy One, blessed be He, takes the soul away, as it is said: Rob not the weak, because he is weak, neither crush the poor in the gate; for the Lord will plead their cause (Prov. 22:22).

This is the ordinance of the Torah - (Psalms 12:6) The sayings of G-d are pure (purify). R. Hanan Ben Pazzi elucidated this verse [of psalms with the parsha of Parah] Parah- which has seven seven sevens; seven cows, seven fires, seven sprinkling, seven washes, seven unclean, seven pure, seven priests. And if someone tells you they are five, tell him: Moses and Aaron are included, as it is said: And the Lord spoke to Moses and Aaron, saying, This is the ordinance of the Torah: