מדרש אויף איוב 15:18

(Fol. 7b) Our Rabbis were taught: The court reads before her (the Sata) parables and incidents mentioned in the first Hogiograph, like the one (Job 15, 18) Which wise men have ever told, and have not concealed, as they obtained it from their father. This refers to Juda, who confessed [his crime] and did not feel ashamed. What was the result? He succeeded to inherit the future world. Reuben confessed and did not feel ashamed. What was the result of his confession? He succeeded to inherit the future world. And what was their reward? Why, we have just said what their reward was. The question must therefore be explained thus: What was their reward in this world? (Ib., ib. 19) Unto whom alone the land was given, and no stranger passed among them. It is readily understood in regard to Juda's confession, for we find that he did confess, as stated in the following passage (Gen. 39, 26) And Juda acknowledged them, etc. "But as to Reuben, whence do we know that he did confess?" said R. Samuel b. Nachman (as fully explained Babba Kamma 92). ...

“The priest shall administer an oath to her, and he shall say to the woman: If a man has not lain with you, and if you did not stray in defilement while married to your husband, be absolved of this water of bitterness that causes curse” (Numbers 5:19).
“The priest shall administer an oath to her” – one does not administer an oath to two sotot simultaneously. One does not burn two heifers together. One does not behead two calves together. One does not execute two people together. One does not quarantine two⁶⁸Lepers together. One does not confirm two⁶⁹Lepers together.
“And he shall say to the woman” – in her language, and to a thief and a robber in their language.⁷⁰When administering an oath to them.
“If a man has not lain with you” – it teaches that he begins in her favor. He says to her: Wine causes a great deal, levity causes a great deal, immaturity causes a great deal; many have preceded you and were swept away. Do not cause the great Name that was written in sanctity to be erased in the water. He says before her matters of aggada and incidents that took place in the ancient Writings, like: “What the wise tell” (Job 15:18). He says before her matters that neither she nor her entire patrilineal family deserves to hear, for example, the incident of Reuben and Bilha, and the incident of Judah and Tamar, who confessed their actions and were not ashamed. What was their end? They inherited the World to Come.
“And if you did not stray in defilement while married to your husband” – why is it stated? It is because we found that the verse included a betrothed woman and a woman with a levirate bond, regarding warning. Do they, perhaps, drink? The verse states: “While married to your husband.” One who is married to her husband drinks, but these do not drink. “Defilement,” it is to the exclusion of via the limbs.⁷¹This excludes intimacy without intercourse.
“Be absolved of this water of bitterness that causes curse” – Rabbi Yishmael said: Initially he informs her of the power of the bitter water. He says to her: ‘My daughter, I will say to you: This bitter water, to what is it similar? To a dry poison that is placed on healthy skin and does not cause harm. When it encounters a wound, it begins to permeate. You, too, if you are pure, drink and you will not be harmed, as you will be absolved. That is what is written: “Be absolved of the water…”
“But you, if you strayed while married to your husband, and if you were defiled, and a man has lain carnally with you, other than your husband” (Numbers 5:20).
“But you, if you strayed” – I have derived only natural relations; unnatural relations, from where is it derived? The verse states: “And if you were defiled.” “And a man has lain carnally with you” – to include the eunuch. “Other than your husband” – this is to include the wife of a eunuch. The priest would stipulate regarding all of them.

(Bamidbar 5:19) "And the Cohein shall beswear her": The Cohein administers the oath and she does not swear of herself. For it would follow (that she does), viz.: It is written here "swear," and, elsewhere (Vayikra 5:4) "swear." Just as there, he swears of himself, so, here, she should swear of herself. It is, therefore, written "And the Cohein shall beswear her." "and he shall say to the woman": in any language that she understands. These are the words of R. Yoshiyah. For it would follow (otherwise), viz.: If in the instance of yevamah, (the instance) of lesser stringency, the other languages are not equated with the holy tongue (Hebrew) (viz. Devarim 25:9), then, (in the instance of) sotah, the graver instance, how much more so should the other languages not be equated with the holy tongue! It is, therefore, written "and he shall say to the woman" — in any language that she understands. These are the words of R. Yoshiyah. R. Yonathan says: This (derivation of R. Yoshiyah) is not necessary; for it is written (Bamidbar 5:22) "and the woman shall say 'Amen,' 'Amen.'" If she does not understand, how can she say this! — But perhaps she says "Amen" only on the curse (i.e., "to swell the belly, etc." [and not on the oath])! — (This cannot be,) for she says Amen twice — both on the curse and on the oath. What, then, is the intent of "and he shall say to the women" (according to R. Yonathan)? That the Cohein teaches her (the import of) the order of the oath. (5:19) "If no man has lain with you": We are hereby taught that he opens for merit. He says to her: Much wine causes this. Much frivolity causes this. Much childishness causes this. Many have preceded you and been swept away (by lust). Do not allow His great name written in holiness to be erased by the (bitter) waters. He recounts before her things from the tradition, things mentioned in the early writings (Iyyov 15:18) "which wise men relate and which they did not withhold from their fathers." And he says before her things which are not fit to be heard, by her and by all the families of her father's house. R. Yishmael says: In the beginning he apprises her of the strength of the bitter waters. He says to her: My daughter, what are these bitter waters like? Like a dry powder placed on raw flesh, which causes no harm, but which, when it finds a sore spot, penetrates and descends. You, too, if you are clean, drink and do not refrain, and, if you are unclean, in the end you will be swollen by these bitter, blighting waters.