'Joints' in the Bible

But a man drew his bow without taking special aim and struck the king of Israel through the joints of his armor. So he said to his charioteer, “Turn around and take me out of the battle, for I am badly wounded!”

But a man drew his bow without taking special aim and struck the king of Israel through the joints of his armor. So he said to the charioteer, “Turn around and take me out of the battle, for I am badly wounded!”

his face turned pale, and his thoughts so terrified him that his hip joints shook and his knees knocked together.

For the word of God is living and effective and sharper than any double-edged sword, penetrating as far as the separation of soul and spirit, joints and marrow. It is able to judge the ideas and thoughts of the heart.