Hebrews 4
11 Ref Because of this, let us have a strong desire to come into that rest, and let no one go after the example of those who went against God's orders.
12 Ref For the word of God is living and full of power, and is sharper than any two-edged sword, cutting through and making a division even of the soul and the spirit, the bones and the muscles, and quick to see the thoughts and purposes of the heart.