1 John 4:2

Confesseth that Jesus Christ is come in the flesh; or confesseth Jesus Christ as having come in the flesh. Many think that the apostle refers to a very ancient form of error which denied our Lord's humanity by maintaining that his body was a delusive show, existing only in vision; whence it would follow that his expiation for sin on the cross with his own blood was not real, but a vain show also. In all such passages as the present, the confession is to be understood as sincere, and as accompanied by a corresponding obedient reception of Christ in his proper character as he is revealed in the gospel.