If we base our position entirely upon experience, we will convince nobody. We are dealing with certain historical events and facts that we must never allow ourselves to forget. Indeed, I am prepared to go as far as to say that whatever I may feel at this moment, though I may feel that I am in a state of darkness and am utterly discouraged, my position is still safe, and I am secure because of these things that have been done in history outside of me and before I was ever born.
Thank God, I do not base my position on how I feel. Feelings are treacherous; they come and go, and what little control we have upon them! We have all had the following experience, have we not? We wake up one morning and find ourselves full of peace and joy and happiness. We have a marvelous day, we read our Bibles, we have freedom in prayer, and all is well. So we look forward to the next day being still more wonderful. But strangely enough, we find that when we wake up the next morning we are lifeless and dull.
If you are going to base your whole position upon experience and feelings, you are going to be a very unhappy person, and your Christian life is going to be very unstable. But the answer is this marvelous plan of salvation. I must, of course, know that I am related to it—that is essential. But what I am arguing for is that if you want to enjoy these blessings and if you want to live this Christian life truly, you do so by looking at these things, by resting upon them, and by saying, if you like, in the words of a hymn:
My hope is built on nothing less
Than Jesus’ blood and righteousness;
I dare not trust the sweetest frame,
But wholly lean on Jesus’ name.
taken from: Jones, David Martyn, and Robert Backhouse. Walking with God Day by Day: 365 Daily Devotional Selections. Wheaton, Ill.: Crossway Books, 2003.
and: Eric T. Young, Reformed Bibliophilie