Hebrews 4:12

For the word of God is living, and powerful, and sharper than any two-edged sword, and piercing unto the dividing of soul and spirit, of both joints and marrow, and a quick discerner of the thoughts and intents of the heart.

Revelation 1:16

and having in his right hand seven stars: and out of his mouth is going forth a sharp two-edged sword: and his countenance like the sun shines in his strength.

Revelation 2:12

To the angel of the church in Pergamum write; The one having the sharp, two-edged sword says these things;

Treasury of Scripture Knowledge

Summary

But Ehud made him a dagger which had two edges, of a cubit length; and he did gird it under his raiment upon his right thigh.

Bible References

Two edges

Hebrews 4:12
For the word of God is living, and powerful, and sharper than any two-edged sword, and piercing unto the dividing of soul and spirit, of both joints and marrow, and a quick discerner of the thoughts and intents of the heart.
Revelation 1:16
and having in his right hand seven stars: and out of his mouth is going forth a sharp two-edged sword: and his countenance like the sun shines in his strength.
Revelation 2:12
To the angel of the church in Pergamum write; The one having the sharp, two-edged sword says these things;