'Loins' in the Bible

He looseth the bond of kings, and girdeth their loins with a girdle.

If his loins have not blessed me, and if he were not warmed with the fleece of my sheep;

Gird up now thy loins like a man; for I will demand of thee, and answer thou me.

Gird up thy loins now like a man: I will demand of thee, and declare thou unto me.

Lo now, his strength is in his loins, and his force is in the navel of his belly.