That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked upon, and our hands have handled, of the Word of life; . . . that which we have seen and heard declare we unto you, that ye also may have fellowship with us: and truly our fellowship is with the Father, and with his Son Jesus Christ.
(I John 1:1, 3)
Since the time of Christ Jesus, committed Christians have recognized the necessity of bearing witness to their faith. For they have felt in their hearts that if mankind was to be redeemed, clear evidence of the power and joy of Christian living would be absolutely essential. Had not Jesus commanded, "Go ye into all the world, and preach the gospel to every creature"? Mark 16:15.