Deuteronomy 33:21 in the King James Version
And he provided the first part for himself, because there, in a portion of the lawgiver, was he seated; and he came with the heads of the people, he executed the justice of the LORD, and his judgments with Israel.
Context
20 About Gad he said, “He who enlarges Gad is blessed. He dwells as a lioness, and tears the arm and the crown of the head.
21 He provided the first part for himself, for the lawgiver’s portion was reserved for him. He came with the heads of the people. He executed the righteousness of the LORD, His ordinances with Israel.”
22 About Dan he said, “Dan is a lion’s cub that leaps out of Bashan.”