Everyone who has this hope set on him purifies himself, even as he is pure.
Even as he is pure - The same kind of purity here, the same degree hereafter. That is, the tendency of such a hope is to make him holy now, though he may be imperfect; the effect will be to make him “perfectly” holy in the world to come. It cannot be shown from this passage that the apostle meant to teach that anyone actually becomes as pure in the present life as the Saviour is, that is, becomes perfectly holy; for all that is fairly implied in it is, that those who have this hope in them aim at the same purity, and will ultimately obtain it. But the apostle does not say that it is attained in this world. If the passage did teach this, it would teach it respecting everyone who has this hope, and then the doctrine would be that no one can be a Christian who does not become absolutely perfect on earth; that is, not that some Christians may become perfect here, but that all actually do. But none, it is presumed, will hold this to be a true doctrine. A true Christian does not, indeed, habitually and willfully sin; but no one can pretend that all Christians attain to a state of sinless perfection on earth, or are, in fact, as pure as the Saviour was. But unless the passage proves that every Christian becomes absolutely perfect in the present life, it does not prove that in fact any do. It proves: