Deuteronomy 33:9

Who says of his father and mother, "I have not seen them'; Nor did he acknowledge his brothers, Or know his own children; For they have observed Your word And kept Your covenant.

Surrounding context

33:8 And of Levi he said: "Let Your Thummim and Your Urim be with Your holy one, Whom You tested at Massah, And with whom You contended at the waters of Meribah,

33:9 Who says of his father and mother, "I have not seen them'; Nor did he acknowledge his brothers, Or know his own children; For they have observed Your word And kept Your covenant.

33:10 They shall teach Jacob Your judgments, And Israel Your law. They shall put incense before You, And a whole burnt sacrifice on Your altar.

Translation and sources