'Two edged' in the Bible

The high praises of God [are] in their mouth, and a two-edged sword in their hand

But in the end she is bitter as wormwood, sharp as a two-edged sword.

For the word of God is living, and potent, and sharper, above every two-edged sword, and piercing as far as the division both of soul and spirit, of both joints and marrow, and discernible of the thoughts and intentions of the hear

and having in his right hand seven stars, and a sharp two-edged sword coming out of his mouth. And the sight of him was as the sun shines in its strength.

And to the agent of the congregation in Pergamos write, These things says he who has the sharp two-edged sword:

And a sharp two-edged sword comes out of his mouth, so that he would smite the nations by it. And he will tend them with a rod of iron. And he treads the winepress of the wine of the wrath of the anger of the Almighty God.