'Two edged' in the Bible

For the word of God is living and full of power, and is sharper than any two-edged sword, cutting through and making a division even of the soul and the spirit, the bones and the muscles, and quick to see the thoughts and purposes of the heart.

And he had in his right hand seven stars: and out of his mouth came a sharp two-edged sword: and his face was like the sun shining in its strength.

And to the angel of the church in Pergamos say: These things says he who has the sharp two-edged sword: