Likutei Moharan 111/ליקוטי מוהר"ן קי״א

1“Rosh B’nei Yisrael (The head of the Children of Israel)” (Exodus 30:12). The first letters spell ReBY (my teacher).

2Conversely, the first letters of “R’sha’im Bachoshekh Yidamu (The wicked shall be silent in the darkness)” (1 Samuel 2:9) spell ReBY. <This hints that their Torah is taught in darkness.>