Hebrews 4:12 famously declares that the word of God is sharper than any two-edged sword. This comparative adjective emphasizes the superior penetrating power of Scripture—it cuts through human pretense, dividing soul and spirit, joints and marrow, discerning the thoughts and intentions of the heart. The image is both surgical and judicial, suggesting precision and authority. No human weapon or word can match the discerning edge of God's living word.