Here’s a quote from Spurgeon’s sermon Salvation by Knowing the Truth that is a noteworthy reminder of the power of God’s unbound Word, of which I preached a couple weeks ago from 2 Timothy 2:8-9. (Via: CBC Evangelism blog)
YOU WHO DESIRE TO SAVE SINNERS. You must, dear friends, bring the truth before them when you want to bring them to Jesus Christ. I believe that exciting meetings do good to some. Men are so dead and careless that almost anything is to be tolerated that wakes them up; but for real solid soul-work before God’ telling men the truth is the main thing. What truth? It is gospel truth, truth about Christ that they want. Tell it in a loving, earnest, affectionate manner, for God wills that they should be saved, not in any other way, but in this way — by a knowledge of the truth. He wills that all men should be saved in this way — not by keeping them in ignorance, but by bringing the truth before them. That is God’s way of saving them. Have your Bible handy when you are reasoning with a soul. Just say, “Let me call your attention to this passage.” It has a wonderful power over a poor staggering soul to point to the Book itself. Say, “Did you notice this promise, my dear friend? And have you seen that passage?” Have the Scriptures handy. There is a dear brother of mine here whom God blesses to many souls, and I have seen him talking to some, and turning to the texts very handily. I wondered how he did it so quickly, till I looked in his Bible, and found that he hind the choice texts printed on two leaves and inserted into the book, so that he could always open upon them. That is a capital plan, to get the cheering words ready to hand, the very ones that you know have comforted you and have comforted others. It sometimes happens that one single verse of God’s word will make the light to break into a soul, when fifty days of reasoning would not do it. I notice that when souls are saved it is by our texts rather than by our sermons. God the Holy Ghost loves to use his own sword. It is God’s word, not man’s comment on God’s word, that God usually blesses. Therefore, stick to the quotation of the Scripture itself, and rely upon the truth. If a man could be saved by a lie it would be a lying salvation. Truth alone can work results that are true. Therefore, keep on teaching the truth. God help you to proclaim the precious truth about the bleeding, dying, risen, exalted, coming Savior; and God will bless it.