Hebrews 4:9-13

There remaineth therefore a sabbath rest for the people of God. For he that is entered into his rest hath himself also rested from his works, as God did from his. Let us therefore give diligence to enter into that rest, that no man fall after the same example of disobedience. 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. And there is no creature that is not manifest in his sight: but all things are naked and laid open before the eyes of him with whom we have to do.