'Loins' in the Bible

He weakeneth the government of kings, and bindeth their loins with a fetter;

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

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

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

Behold now, his strength is in his loins, and his force is in the muscles of his belly.