Knives are dangerous.

Several years ago I purchased new pocket knives for myself and my son.  Though knives are dangerous we need to learn to use them safely.  So while demonstrating to my family how to use the knife safely... I nearly cut my finger off!  Though quite humbling to be raced to the emergency room, perhaps it was an even better lesson for both me and my family.   Knives are dangerous, so be careful. The Christian Scripture picks up on the theme using a double-edged sword as a metaphor for ONLY TWO things.

Hebrews 4:11-13 (WEB) says,

Let's therefore give diligence to enter into that rest, lest anyone fall after the same example of disobedience. For the word of God is living and active, and sharper than any two-edged sword, 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.  There is no creature that is hidden from his sight, but all things are naked and laid open before the eyes of him to whom we must give an account.

So this is not surprising and seems fitting to compare the power and sharpness of God's word to a double-edged sword.

However, we also read in Proverbs 5:3-5 (WEB),

For the lips of an adulteress drip honey.  Her mouth is smoother than oil, but in the end she is as bitter as wormwood, and as sharp as a two-edged sword. Her feet go down to death. Her steps lead straight to Sheol.

This seems curious that God's Holy Word would share the same metaphor as an adulterous!

So we are reminded of the awesome cutting power of God's word and the adulterous.  One cuts for our good, the other cuts to destroy.