'Two edged' in the Bible

May the high praises of God be in their mouths, and a two-edged sword in their hand;

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

For the word of God is living, and active, and sharper than any two-edged sword, and piercing even to the dividing of soul and spirit, of both joints and marrow, and is able to discern the thoughts and intentions of the heart.

He had seven stars in his right hand. Out of his mouth proceeded a sharp two-edged sword. His face was like the sun shining at its brightest.

"To the angel of the assembly in Pergamum write: "He who has the sharp two-edged sword says these things: