Faith is fundamental in Christian creed and conduct. It was the one thing which above all others Christ recognized as the paramount virtue. The Syrophoenician woman (Matt. 15) had perseverance; the centurion (Matt. 8), humility; the blind man (Mark 10), earnestness. But what Christ saw and rewarded in each of these cases was faith. Faith is the foundation of Peter's spiritual temple (2 Pet. 1:5-7); and first in Paul's trinity of graces (1 Cor. 13:13). In faith all the other graces find their source.
II. THE DEFINITION OF FAITH.
Faith is used in the Scriptures in a general and in a particular sense.
1. ITS GENERAL MEANING:
a) Knowledge.
Psa. 9:10—"And they that know thy name will put their trust in thee." Rom. 10:17—"So then faith cometh by hearing, and hearing by the word of God." Faith is not believing a thing without evidence; on the contrary faith rests upon the best of evidence, namely, the Word of God. An act of faith denotes a manifestation of the intelligence: "How shall they believe in him of whom they have not heard?" Faith is no blind act of the soul; it is not a leap in the dark. Such a thing as believing with the heart without the head is out of the question. A man may believe with his head without believing with his heart; but he cannot believe with his heart without believing with his head too. The heart, in the Scriptures, means the whole man—intellect, sensibilities, and will. "As a man thinketh in his heart." "Why reason ye these things in your hearts?"
b) Assent.
Mark 12:32—"And the scribe said unto him, Well, Master, thou hast said the truth." So was it with the faith which Christ demanded in His miracles: "Believe ye that I am able to do this?" "Yea, Lord." There must not only be the knowledge that Jesus is able to save, and that He is the Saviour of the world; there must be also an assent of the heart to all these claims. Those who, receiving Christ to be all that He claimed to be, believed in Him, became thereby sons of God (John 1:12).
c) Appropriation.
John 1:12; 2:24. There must be an appropriation of the things which we know and assent to concerning the Christ and His work. Intelligent perception is not faith. A man may know Christ as divine, and yet aside from that reject him as Saviour. Knowledge affirms the reality of these things but neither accepts nor rejects them. Nor is assent faith. There is an assent of the mind which does not convey a surrender of the heart and affections.