He represents, moreover, a statement of his own as if it were an answer to one of his questions, in which he asks: “By what train of argument were you led to regard him as the Son of God?” For he makes us answer that “we were won over to him, because we know that his punishment was undergone to bring about the destruction of the father of evil.” Now we were won over to His doctrine by innumerable other considerations, of which we have stated only the smallest part in the preceding pages; but, if God permit, we shall continue to enumerate them, not only while dealing with the so-called True Discourse of Celsus, but also on many other occasions. And, as if we said that we consider Him to be the Son of God because He suffered punishment, he asks: “What then? Have not many others, too, been punished, and that not less disgracefully?” And here Celsus acts like the most contemptible enemies of the Gospel, and like those who imagine that it follows as a consequence from our history of the crucified Jesus, that we should worship those who have undergone crucifixion!
Source: Against Celsus (New Advent)