For the word of God is living and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart.
There are more versions here: NETBible: Hebrews 4:12
By the way,
- the word of God means the Truth;e.g., the truth is sharper than ...
- the sword is a symbol or power and authority
- according to one author,"By the definitions provided, the Sword of the Spirit, is the weapon of power and authority, sharper than any double edged sword, used to wound and kill our spiritual (unseen) enemies, in a nonmaterial war (Spiritual War)." Read more here: THE SWORD OF THE SPIRIT