So the self-abandoment as a method to deal with evil is not something structurally explored - even if we have the instances in the OT I have mentioned in #18?Bob, my objection to the word sacrifice is that sacrifice means giving up something, while Shabbat is actually the opposite, as you seem to agree.
I would add to those three other ones I have remembered - the acceptance of her fate byJephtha's daughter (Jephtha is another of the "disregarded sons od 2nd wives" ;-) @Rob Harding - a very classical moment, as Mary Mother of Jesus actually cities her in Her response in the Announciation.), queen Esther entering the presence of the king, and the moment the Tolkien Professor mentioned in the last ETLOTR episode, David going out against Goliath. So we see plenty of people "being ready to lose"/"playing for failure" in OT, but can that be called a systemic method to face evil from the Jewish point of view in the way it is prescribed in the SotM?
And the whole deescalation of conflict angle, actually I do remember only Jacob trying to use it after the rape of Dinah (the attempt being completely ruined by her brothers - imho mostly for dynastic reasons) and Joseph son of Jacob's reconcillation with his brothers in Egypt - again instances, but not a generalised attitude?