I have written unto you, fathers,.... This, with the reason annexed to it, is repeated, to raise the attention of the aged servants of Christ, and to quicken them to a discharge of their duty, who are apt to abate in their zeal, to grow lukewarm and indifferent, to cleave to the world, and to the things of it, which they are cautioned against in 1Jo 2:15.
The whole of this, with the reason,because ye have known him [that is] from the beginning, is left out in the Vulgate Latin version, and Complutensian edition.