'Two edged' in the Bible

For God's Message is full of life and power, and is keener than the sharpest two-edged sword. It pierces even to the severance of soul from spirit, and penetrates between the joints and the marrow, and it can discern the secret thoughts and purposes of the heart.

In His right hand He held seven stars, and a sharp, two-edged sword was seen coming from His mouth; and His glance resembled the sun when it is shining with its full strength.

"To the minister of the Church at Pergamum write as follows: "'This is what He who has the sharp, two-edged sword says. I know where you dwell.