Tertullian

“ Accordingly, after He had said this, and so suggested a comparison of the Scripture, a ray of light did seem to show them whom He would have them understand Him to be; for they say: “Art thou then the Son of God?” [19] Of what God, but of Him whom alone they knew? Of what God but of Him whom they remembered in the Psalm as having said to His Son, “Sit Thou on my right hand?” Then He answered, “Ye say that I am;” [20] as if He meant: It is ye who say this—not I. But at the same time He allowed Himself to be all that they had said, in this their second question. ”

“ Why, therefore, did He not, even at that moment, declare to them the rival (Christ) ? You reply, In order that He might be able to suffer. In other words, that this most excellent god might plunge men into crime, whom he was still keeping in ignorance. ”