'Joint' in the Bible

And when he saw that he did not prevail against him, he touched the joint of his thigh; and the joint of Jacob's thigh was dislocated as he wrestled with him.

Therefore the children of Israel do not eat of the sinew that is over the joint of the thigh, to this day; because he touched the joint of Jacob's thigh the sinew.

I am poured out like water, and all my bones are out of joint: my heart is become like wax; it is melted in the midst of my bowels.

And I saw that the house had an elevation round about: the foundations of the side-chambers, a full reed, six cubits to the joint.