Charles Spurgeon Commentary Ephesians 6:17

"And take the helmet of salvation, and the sword of the Spirit, which is the word of God:" — Ephesians 6:17 (ASV)

And the sword of the Spirit, which is the word of God.

There is no sword like that; it pierces even to the division of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart. Nothing can resist the Word of God if it is only wielded correctly. There is one more weapon in the heavenly armoury:

And take the helmet of salvation, –

You used to wear the helmet of pride with its fine nodding plumes, but that has been taken off by you long ago. Now put on "the helmet of Salvation." This will effectually defend your head, and no sword will be able to cleave through it to injure you. Your brain and everything that is connected with your mental powers will be right when you know that you are saved, and when the power of God's salvation is working within you.