These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God. That ye may know that ye have eternal life - I write to show your privileges - to lead you into this holy of holies - to show what believing on the Son of God is, by the glorious effects it produces: it is not a blind reliance for, but an actual enjoyment of, salvation; Christ living, working, and reigning in the heart.
And that ye may believe - That is, continue to believe: for Christ dwells in the heart only by Faith, and faith lives only by Love, and love continues only by Obedience; he who Believes loves, and he who Loves obeys. He who obeys loves; he who loves believes; he who believes has the witness in himself: he who has this witness has Christ in his heart, the hope of glory; and he who believes, loves, and obeys, has Christ in his heart, and is a man of prayer.