Deuteronomy 33:8-11 - Blessing On Levi
8 And to Levi he said, Thy Truth and thy Light to the godly man whom they tried in the trial; thou wilt contend with him at the water of contention. 9 He saying to his father and to his mother, I saw him not, and his brethren he knew not, and he knew not his sons; for they watched thy sayings and they will keep thy covenant. 10 And they shall teach thy judgments to Jacob, and thy law to Israel; they will put incense at thy nose, and whole burnt-offerings upon thine altar. 11 Bless, Jehovah, his strength, and thou wilt accept the work of his hands: smite through and through the loins of those rising up against him, and those hating him, lest they shall rise up.