'Double edged' in the Bible

For God's message is alive and full of power in action, sharper than any double-edged sword, piercing even to the depths of soul and spirit, to the dividing of joints and marrow, and passing judgment on the thoughts and purposes of the heart.

In His right hand He was holding seven stars, and a sharp, double-edged sword was coming out of His mouth, and His face was shining like the sun at midday.

"To the messenger of the church in Pergamum write: 'The One who is wielding the sharp, double-edged sword speaks as follows: