". . .and the sword of the Spirit, which is the word of God." Ephesians 6:17

"For the word of God is living and active and sharper than any two-edged sword,
and piercing as far as the division of soul and spirit,
of both joints and marrow,
and able to judge the thoughts and intentions of the heart."
Hebrews 4:12

"And He said to them, "When I sent you out without money belt and bag and sandals, you did not lack anything, did you?"
They said, "No, nothing."
And He said to them, "But now, whoever has a money belt is to take it along,
likewise also a bag,
and whoever has no sword is to sell his coat and buy one."
Luke 22:35,36

NASB