Some ask:
“How am I to get my heart warmed?”
It is by believing. You do not get power to love and serve God until you believe.
The apostle John says “If we receive the witness of men, the witness of God is greater: for this is the witness of God which He hath testified of His Son. He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made Him a liar; because he believeth not the record that God gave of His Son. And this is the record, that God hath given to us eternal life, and this life is in His Son. He that hath the Son hath life; and he that hath not the Son of God hath not life” (1 John 5:9).
Human affairs would come to a standstill if we did not take the testimony of men. How should we get on in the ordinary intercourse of life, and how would commerce get on, if we disregarded men’s testimony?
Things social and commercial would come to a deadlock within forty-eight hours! This is the drift of the apostle’s argument here. “If we receive the witness of men, the witness of God is greater.”
God has borne witness to Jesus Christ. And if man can believe his fellow men who are frequently telling untruths and whom we are constantly finding unfaithful, why should we not take God at His word and believe His testimony?
Faith is a belief in testimony. It is not a leap in the dark, as some tell us. That would be no faith at all. God does not ask any man to believe without giving him something to believe. You might as well ask a man to see without eyes; to hear without ears; and to walk without feet—as to bid him believe without giving him something to believe.