"Take the sword of the Spirit, which is the word of God." by C.H Spurgeon

"That Word of God which could convert you, can convert anybody; if it could kill your despair, it can remove another man's despondency; if it has conquered your pride and self-will, it can subdue the like in your children and your neighbors. Having done what it has certainly done for you, you may have a full persuasion that, before its power, no case is hopeless. Wherefore, see to it, that you use from this day forth no other weapon than the sword of the Spirit, which is the Word of God...

Do not merely say, "I will keep Satan out of my family by bringing up my children aright", but go to the Sunday-school, and teach other children, and so carry the war over the border...

But I pray you do not let your love of the Bible end there. With a soldier in war, a sword is not meant to be hung up in the tent, nor even to be flourished in the air; but it is issued to be used. Nor are we to push this sword into a sheath, as many do who take the Bible, and add so much of criticism, or of their own opinion to it, that its edge is not felt. Many men use their low opinion of inspiration as a scabbard into which they push the Bible down. Their vast knowledge makes a beautiful scabbard, and they push down the sword, saying, "Keep still there! O sword of the Lord, rest and he quiet!" After we have preached our heart out, and men have felt the power of it, they make a desperate effort to imprison the Word in their unbelieving theory, or in their worldliness. They hold down the Word all the week with a firm hand, for fear its edge or point should wound them. It is the scabbard of culture, or philosophy, or of progress, and in this they shut up the living Word of God as in a coffin...

As quick as arm can move, drive texts of Scripture through every new fallacy, every new denial of truth, and spit the whole of them upon the rapier of the Word. It will be for your good to kill these doubts outright. Do not play with them, but fight them in real earnest. You will find that temptations also will come in hordes. Meet them with the precepts of sacred Writ, and slay even the desire of evil by the Spirit's application of the Holy Word. The washing of water by the Word is a glorious cleanser. Discouragements will arise like mists of the morning. Oh, that God's Word may shine them away with the beams of the promises! Your afflictions multiply, and you will never be able to overcome impatience and distrust except by the infallible Word of God. You can bear trial, and bear it patiently, if you use this weapon to kill anxiety. You will "stand fast in the evil day", and having done all, you will still stand, if this sword be in your hand...

No sinner around you will be saved except by the knowledge of the great truths contained in the Word of God. No man will ever be brought to repentance, to faith, and to life in Christ, apart from the constant application of the truth through the Spirit...

Our divine Lord in the wilderness was tempted of the devil. He might have fought Satan with a thousand weapons; but he chose to defeat him with this one only. He said, "It is written; it is written; it is written." He pricked the foeman so sorely with this sharp point, that the arch-adversary thought to try the same sword; and he also began to say, "It is written." But he cut himself with this sword, for he did not quote the passages correctly, nor give the whole of them; and the Master soon found the way to knock aside his sword, and wound him still more. Follow your Lord's example."
https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2201.cfm?a=1103001