Job 40:16 in the King James Version
Lo now, his strength is in his loins, and his force is in the navel of his belly.
Context
15 “See now behemoth, which I made as well as you. He eats grass as an ox.
16 Look now, his strength is in his thighs. His force is in the muscles of his belly.
17 He moves his tail like a cedar. The sinews of his thighs are knit together.