The apostle also commends the brethren he is sending to Gaius, praising their faithfulness to Christ, and their willingness to go forth, taking nothing of the Gentiles.  Precisely who he intends by “the Gentiles” I am not certain.  Perhaps they were Jewish believers, who thought it not right to travel upon the charity of the Gentile churches.  Or rather, it may be that they disdained seeking any assistance from worldly sources, opposing Gentiles here as the unbelieving world, to the true Israel of God.  I prefer the latter notion, but would not insist upon it.  At any rate, it is clear that John highly approves of their selflessness and integrity, and desires that Gaius would show them much Christian love and hospitality, because of their faithful service to Christ.  Since these men were vessels who carried the truth, believers such as Gaius ought to receive them, and to assist them in whatsoever need they might have.  We ourselves might not be gifted as evangelists, but God will provide some means whereby we may assist in the spread of the Gospel.  Thus, John encourages Gaius with the thought that, by helping these faithful missionaries, he is being a fellowhelper to the truth.  And this, when considered rightly, is fully as necessary a work as traveling and preaching itself.