Hebrews 4:12-14

For the word of God is living and active and full of power [making it operative, energizing, and effective]. It is sharper than any two-edged sword, penetrating as far as the division of the soul and spirit [the completeness of a person], and of both joints and marrow [the deepest parts of our nature], exposing and judging the very thoughts and intentions of the heart. And not a creature exists that is concealed from His sight, but all things are open and exposed, and revealed to the eyes of Him with whom we have to give account. Inasmuch then as we [believers] have a great High Priest who has [already ascended and] passed through the heavens, Jesus the Son of God, let us hold fast our confession [of faith and cling tenaciously to our absolute trust in Him as Savior].