A word that in biblical usage appears to cover a variety of anatomical elements, including tendons, ligaments, and possibly muscle and other tissues. In (Gen 32:32) it may even refer to nerve tissue. It is used figuratively in (Isa 48:4) for stubbornness. In (Job 10:11 and (Ezek 37:6), Ezek 37:8) the actual connective human tissues seem to be involved. “The sinews of his thighs” in (Job 40:17) in the description of an animal in sexual arousal or anger may refer to the penis or related organs.
32Therefore to this day the Israelites do not eat the thigh muscle that is on the hip socket, because he struck Jacob on the hip socket at the thigh muscle.
4Because I know that you are obstinate,
and your neck is an iron sinew
and your forehead brass,
11You clothed me with skin and flesh,
and knit me together with bones and sinews.
6I will lay sinews on you, and will cause flesh to come upon you, and cover you with skin, and put breath in you, and you shall live; and you shall know that I ... View more
8I looked, and there were sinews on them, and flesh had come upon them, and skin had covered them; but there was no breath in them.
17It makes its tail stiff like a cedar;
the sinews of its thighs are knit together.