'Joints' in the Bible

And a certain man drew his bow at a venture, and smote the king of Israel between the joints of the armor: wherefore he said unto the driver of his chariot, Turn thy hand, and carry me out of the host; for I am sore wounded.

And a certain man drew his bow at a venture, and smote the king of Israel between the joints of the armor: wherefore he said to the driver of the chariot, Turn thy hand, and carry me out of the host; for I am sore wounded.

Then the king's countenance was changed in him, and his thoughts troubled him; and the joints of his loins were loosed, and his knees smote one against another.

and not holding fast the Head, from whom all the body, being supplied and knit together through the joints and bands, increasing with the increase of God.

For the word of God is living, and active, and sharper than any two-edged sword, and piercing even to the dividing of soul and spirit, of both joints and marrow, and quick to discern the thoughts and intents of the heart.