Midrash su Salmi 26:11

Satan preceded him on the way, saying (Job 4, 2-6) If we essay to address a few words to thee, wilt thou be wearied… . Behold, thou hast (ere this) corrected many, and weak hands thou wast wont to strengthen. Him that stumbled, thy words used to uphold, and to sinking knees thou gavest vigor. Yet now, when it cometh to thee, thou art wearied; it toucheth even thee, and thou art terrified. And Abraham answered him (Ps. 26, 11) But as for me, I will walk in my integrity. And Satan said again (Job. 4) Is not then thy fear of God a stupidity? And Abraham answered: (Ib.) Remember, who ever perished being innocent. When Satan saw that Abraham did not listen to him, he said to him: (Ib. 12) But to me a word came by stealth. "I have heard from behind the [heavenly] curtain that a ram will be for a burnt-offering, but not Isaac a burnt offering." Abraham remarked: "This is the punishment of liars, that even when they tell the truth, nobody believes them." R. Levi, however, said: ["The above-cited verse, after these things, means] after the exchange of words between Ismael and Isaac. Ismael said to Isaac: 'I am greater than thee in performing the commandments of the Lord, as I was circumcised when I was thirteen years of age, and thou when thou wert only eight days.' To which Isaac answered: 'Thou art proud against me because thou hast offered only one member of thy body; if the Holy One, praised be He! should command me to sacrifice my whole body to Him I would do it immediately,' hence, and God tempted Abraham."

(Ibid. 13) "Whole shall you be with the L-rd your G-d": When you are whole, your lot will be with the L-rd your G-d." And thus did David say (Psalms 26:11) "And I in My wholeness will go — redeem me and be gracious unto me," and (Ibid. 41:13) "And I, in my wholeness You supported me, and You placed me before You forever."