Kabbalah su Salmi 26:2

So the Holy One, blessed be He, answered David, "As for Abraham, I have already tried and tested him, and he resisted and was found before me to be wholly steadfast." David said to Him, "Examine me, Hashem, and prove me, purify my kidneys and my heart!" (Ps. 26:2) But when he became involved in the matter of Bathsheba, David remembered what he had said to the Holy One, blessed be He, and said, "You have proved my heart, You have visited it in the night. You have tried me, but You did find nothing; Let no presumptuous thought pass my lips" (Ps. 17:3).

King David first said, “Examine me, Hashem, and prove me” (Tehillim 26:2), for I am not afraid of all the judgments, not even of this righteousness, for I am connected to it (David was the embodiment of Malchut). It is written, “I will behold your face in righteousness” (Ibid. 17:15), specifically with righteousness. I am not afraid of withstanding its judgments. After he sinned, he feared even justice, as written, “And enter not into judgment (justice) with your servant” (Ibid. 143:2). Come and see, when this righteousness (Tzedek) is sweetened by justice, it is called righteousness (tzedakah) with a feminine suffix, because it becomes the female part of Zeir Anpin called justice, and she receives Chassadim from him. And the world is sweetened with Chesed and filled by it as written, “He loves righteousness (tzedakah) and justice; the earth is full of the Chesed of Hashem” (Ibid. 33:5).