Who will have all men to be saved, and to come unto the knowledge of the truth. – 1 Timothy 2:4

That which the Lord has revealed in holy Scripture you must devoutly believe to be true. In addition to this, your knowledge, if it becomes believing knowledge, must be personal knowledge-a persuasion that it is true in reference to yourself. It is true about your neighbor, about your brother, but you must believe it about yourself, or your knowledge is vain-for instance, you must know that you are lost-that you are in danger of eternal destruction from the presence of God-that for you there is no hope but in Christ-that for you there is hope if you rest in Christ-that resting in Christ you are saved. Yes, you. You must know that because you have trusted in Christ you are saved, and that now you are free from condemnation, and that now in you the new life has begun, which will fight against the old life of sin, until it overcome, and you, even you, are safely landed on the golden shore. There must be a personal appropriation of what you believe to be true. That is the kind of knowledge which saves the soul. But this must be a powerful knowledge, by which I mean that it must operate in and upon your mind. A man is told that his house is on fire. I will suppose that standing here I held up a telegram, and said, “My friend, is your name so-and-so?” “Yes.” “Well, your house is on fire.” He knows the fact, does he not? Yes, but he sits quite still. Now, my impression is about that good brother, that he does not know, for he does not believe it. He cannot believe it, surely he may believe that somebody’s house is on fire, but not his own. If it is his house which is burning, and he knows it, what does he do? Why he gets up and goes off to see what he can do towards saving his goods. That is the kind of knowledge which saves the soul-when a man knows the truth about himself, and therefore his whole nature is moved and affected by the knowledge. Do I know that I am in danger of hell fire? And am I in my senses? Then I shall never rest till I have escaped from that danger. Do I know that there is salvation for me in Christ? Then I never shall be content until I have obtained that salvation by the faith to which that salvation is promised. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1516.cfm