And observe the recklessness of that expression, “For if you worship any other of the things in the universe,” as though he would have us believe that we are led by our service of God to the worship of any other things which belong to God, without any injury to ourselves. But, as if feeling his error, he corrects the words, “If you worship any other of the things in the universe,” by adding, “We may honour none, however, except those to whom that right has been given by God.” And we would put to Celsus this question in regard to those who are honoured as gods, as demons, or as heroes: “Now, sir, can you prove that the right to be honoured has been given to these by God, and that it has not arisen from the ignorance and folly of men who in their wanderings have fallen away from Him to whom alone worship and service are properly due?
You said a little ago, O Celsus, that Antinous, the favourite of Adrian, is honoured; but surely you will not say that the right to be worshipped as a god was given to him by the God of the universe? And so of the others, we ask proof that the right to be worshipped was given to them by the Most High God.” But if the same question is put to us in regard to the worship of Jesus, we will show that the right to be honoured was given to Him by God, “that all may honour the Son, even as they honour the Father.” For all the prophecies which preceded His birth were preparations for His worship.
And the wonders which He wrought— through no magical art, as Celsus supposes, but by a divine power, which was foretold by the prophets— have served as a testimony from God in behalf of the worship of Christ. He who honours the Son, who is the Word and Reason, acts in nowise contrary to reason, and gains for himself great good; he who honours Him, who is the Truth, becomes better by honouring truth: and this we may say of honouring wisdom, righteousness, and all the other names by which the sacred Scriptures are wont to designate the Son of God.
Source: Against Celsus (New Advent)