2 John 1:11

Biddeth him God speed; if one aid or encourage another in sinning, he becomes partaker of his guilt. Those teachers who reject the great truths taught by Christ and his apostles, of his divinity, incarnation, and atonement; of justification by faith in him, regeneration by the Spirit of God, and the necessity of perseverance in holiness in order to salvation, are not of God, and not to be received: no such attention should be paid to them as will aid or encourage them in the propagation of their errors.