Reference for Sotah 64:9
תניא רשב"י אומר אדם אומר שבחו בקול נמוך וגנותו בקול רם
It has been taught: R. Simeon b. Yohai said: A man should recount what is to his credit in a low voice and what is to his discredit in a loud voice. That he is to recount what is to his credit in a low voice [is learnt] from the confession made at the presentation of the tithe, and what is to his discredit in a loud voice from the declaration made at the offering of the first-fruits.<span class="x" onmousemove="('comment',' In the former he tells how he had done his duty (V. Deut. XXVI, 13f.) and in that connection the unqualified 'say' occurs. In the latter he tells of his humble ancestry (ibid. 5ff.) and in that connection 'answer and say', i.e., say aloud, occurs. ');"><sup>8</sup></span>