Two-Edged Sword

Hebrews 4:12
[4:12] For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.

Matthew 10:34
[10:34] Think not that I am come to send peace on earth: I came not to send peace, but a sword.

Isaiah 49:2
[49:2] And he hath made my mouth like a sharp sword; in the shadow of his hand hath he hid me, and made me a polished shaft; in his quiver hath he hid me;