'Two edged' in the Bible

Let the high praises of God be in their throats,And a two-edged sword in their hands,

But in the end she is bitter like [the extract of] wormwood,Sharp as a two-edged sword.

For the word of God is living and active and full of power [making it operative, energizing, and effective]. It is sharper than any two-edged sword, penetrating as far as the division of the soul and spirit [the completeness of a person], and of both joints and marrow [the deepest parts of our nature], exposing and judging the very thoughts and intentions of the heart.

In His right hand He held seven stars, and from His mouth came a sharp two-edged sword [of judgment]; and His face [reflecting His majesty and the Shekinah glory] was like the sun shining in [all] its power [at midday].

“And to the angel (divine messenger) of the church in Pergamum write:“These are the words of Him who has and wields the sharp two-edged sword [in judgment]: