Strong G3751 ὀσφῦς osphus · loins

Hebrews

1. Hebrews 7:5
   And verily they that are of the sons of Levi, who receive the office of the priesthood, have a commandment to take tithes of the people according to the law, that is, of their brethren, though they come out of the loins of Abraham:
2. Hebrews 7:10
   For he was yet in the loins of his father, when Melchisedec met him.