'Two edged' in the Bible

Let the high praises of God be 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 active and sharper than any two-edged sword, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart.

In His right hand He held 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 Pergamum write:The One who has the sharp two-edged sword says this: