Wherefore it shall not weary us, to endeavor with all our might to stretch out the hand unto them. Over and above what has been already stated, I have deferred to the following book, to adduce the words of the Lord; if, by convincing some among them, through means of the very instruction of Christ, I may succeed in persuading them to abandon such error, and to cease from blaspheming their Creator, who is both God alone, and the Father of our Lord Jesus Christ. Amen.
Irenaeus of Lyons
Against Heresies, Book III
Chapter XXV