Whosoever transgresseth, and abideth not in the doctrine of Christ, hath not God. He that abideth in the doctrine of Christ, he hath both the Father and the Son. Whosoever transgresseth - Παραβαινων· He who passes over the sacred enclosure, or goes beyond the prescribed limits; and abideth not in the doctrine - does not remain within these holy limits, but indulges himself either in excesses of action or passion; hath not God for his Father, nor the love of God in his heart.
Hath both the father and the Son - He who abideth in the doctrine of Christ, his body is a temple of the Holy Trinity, and he has communion with the Father as his Father, and with the Son as his Savior and Redeemer.