Exhortations to purity and caution
Keep yourself pure as the habitation of God. You are the temple of Christ. You are the instrument of the Spirit. You know in what way I have brought you up. Though I am the least of men, seek to follow me, be an imitator of my conduct. I do not glory in the world, but in the Lord. I exhort Hero, my son; “but let him that glories, glory in the Lord.” May I have joy of you, my dear son, whose guardian may He be who is the only unbegotten God, and the Lord Jesus Christ! Do not believe all persons, do not place confidence in all; nor let any man get the better of you by flattery. For many are the ministers of Satan; and “he that is hasty to believe is light of heart.”
Source: The Spurious Epistles (New Advent)