But we had the sentence of death in ourselves, that we should not trust in ourselves, but in God which raiseth the dead – 2 Corinthians 1:9

You cannot lay hold upon salvation by grace through your feelings. The hand of faith is constructed for the grasping of a present salvation by grace. But feeling is not adapted for that end. If you go about to say, “I must feel that I am saved. I must feel so much sorrow and so much joy or else I will not admit that I am saved,” you will find that this method will not answer. As well might you hope to see with your ear, or taste with your eye, or hear with your nose, as to believe by feeling: it is the wrong organ. After you have believed, you can enjoy salvation by feeling its heavenly influences; but to dream of getting a grasp of it by your own feelings is as foolish as to attempt to bear away the sunlight in the palm of your hand, or the breath of heaven between the lashes of your eyes. There is an essential absurdity in the whole affair.

Moreover, the evidence yielded by feeling is singularly fickle. When your feelings are peaceful and delightful, they are soon broken in upon, and become restless and melancholy…Faith receives the statement of God concerning His way of gracious pardon, and thus it brings salvation to the man believing; but feeling, warming under passionate appeals, yielding itself deliriously to a hope which it dares not examine, whirling round and round in a sort of dervish dance of excitement which has become necessary for its own sustaining, is all on a stir, like the troubled sea which cannot rest… The salvation, and the faith, and the whole gracious work together, are not of ourselves. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/3479.cfm