Hebrews 4:12 in the King James Version
For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.
Context
11 Let’s therefore give diligence to enter into that rest, lest anyone fall after the same example of disobedience.
12 For the word of God is living and active, and sharper than any two-edged sword, piercing even to the dividing of soul and spirit, of both joints and marrow, and is able to discern the thoughts and intentions of the heart.
13 There is no creature that is hidden from his sight, but all things are naked and laid open before the eyes of him to whom we must give an account.