Reference for Sanhedrin 213:10
דרש רבא מאי דכתיב (תהלים לה, טו) ובצלעי שמחו ונאספו נאספו עלי נכים [ולא ידעתי] קרעו ולא דמו אמר דוד לפני הקב"ה רבש"ע גלוי וידוע לפניך שאם היו קורעין בשרי לא היה דמי שותת
Raba expounded: What is meant by the verse, <i>But in mine adversity they rejoiced, and 'gathered themselves together: yea, the abjects gathered themselves together against me, and I knew it not; they did tear me, and ceased not</i>?<span class="x" onmousemove="('comment',' Ibid. XXXV, 15. ');"><sup>19</sup></span> David exclaimed before the Holy One, blessed be He, 'Sovereign of the Universe! Thou knowest full well, that had they torn my flesh, my blood would not have flown.<span class="x" onmousemove="('comment',' [By reason of the shame to which he had been put. Cf. B.M. 58b: The red color of the face departs, and the white takes its place.] ');"><sup>20</sup></span>