3.

But let us revert to the same line of argument [hitherto pursued]. For when it has been manifestly declared, that they who were the preachers of the truth and the apostles of liberty termed no one else God, or named him Lord, except the only true God the Father, and His Word, who has the pre-eminence in all things; it shall then be clearly proved, that they (the apostles) confessed as the Lord God Him who was the Creator of heaven and earth, who also spoke with Moses, gave to him the dispensation of the law, and who called the fathers; and that they knew no other. The opinion of the apostles, therefore, and of those (Mark and Luke) who learned from their words, concerning God, has been made manifest.