'Loins' in the Bible

None shall be weary nor stumble among them; none shall slumber nor sleep; neither shall the girdle of their loins be loosed, nor the latchet of their shoes be broken:

And righteousness shall be the girdle of his waist, and faithfulness the girdle of his loins.

at that time Jehovah spake by Isaiah the son of Amoz, saying, Go, and loose the sackcloth from off thy loins, and put thy shoe from off thy foot. And he did so, walking naked and barefoot.

Therefore are my loins filled with anguish; pangs have taken hold upon me, as the pangs of a woman in travail: I am pained so that I cannot hear; I am dismayed so that I cannot see.

Tremble, ye women that are at ease; be troubled, ye careless ones; strip you, and make you bare, and gird'sackcloth upon your loins.

Thus saith Jehovah to his anointed, to Cyrus, whose right hand I have holden, to subdue nations before him, and I will loose the loins of kings; to open the doors before him, and the gates shall not be shut: