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

There is only one weapon whereby we can fight Satan to any purpose, and that is the word of God. But observe, that it must not be merely the letter of the word. It must be the "sword of the Spirit," and therefore a spiritual sword, which can only be taken in hand when the word of God is applied with a divine power to your heart, and you have a living faith in it as made "life and spirit" to your soul. It is of no use my bringing forward a text to resist a temptation of Satan, unless I can make that text my own; in other words, unless I can handle that sword as one who knows how to wield it. To take up a text and not know the sweetness and power of it, would be like a child taking up a warrior's sword without having the warrior's hand. He might play with the sword, but what is the sword of a giant in the hand of a child?

The sword of Scanderbeg, a famous Albanian warrior against the Turks, used to be shown at Vienna. A man who once looked at and handled it said, "Is this the sword which won so many victories? I see nothing in it; it is but a common sword." The answer was, "You should have seen the arm that wielded it." So it is not merely taking a text, adopting scripture language, and quoting passages, which will beat back the fiery assaults of Satan. This is having Scanderbeg's sword without having Scanderbeg's arm. But it is having the word of truth brought into our heart by the power of God, faith raised up to believe that God himself speaks it to our heart, being thus enabled to wield it in the strength of the Spirit and by the power of faith in living exercise, to resist every hellish thrust.