Ezekiel 28:3

“Behold, you are wiser than Daniel. There is no secret that they can hide from you.”

Again we are confronted by the question as to who is meant by Dani'el (compare on Ezekiel 14:14; Ezekiel 14:20). It is quite possible that Ezekiel is comparing him with that great contemporary figure Daniel (Daniyye'l, an alternative form. Compare Do'eg (1 Samuel 21:7; 1 Samuel 22:9) spelled Doyeg in 1 Samuel 22:18; 1 Samuel 22:22) who had risen so high in the court of the king of Babylon and had become a folk-hero to his people. He was renowned for his wisdom (Daniel 1:17; Daniel 1:20) and vision (Daniel 2:19) and as the one to whom the secrets of God were revealed (Daniel 2:22; Daniel 2:28; Daniel 2:30; Daniel 2:47). As the message of the prophecy was for Israel and not for Tyre, who would probably never receive it, the fact that Tyre might not have known much about Daniel is irrelevant, although Daniel was by now such a powerful figure (Daniel 2:48) that he had probably already become a legend in his own time, even in Tyre.

Alternately there may be in mind some patriarchal figure like the Dan'el described at Ugarit, the Dispenser of fertility, who was seen as upright and as judging the cause of the widow and the fatherless. That Dan'el would certainly be known to the Tyrians.

Either way the point is that he claimed to have supernatural knowledge, to a knowledge of all secrets greater than Daniel's, and that Ezekiel is deriding him for it, while agreeing that he has a certain kind of wisdom. There is wry sarcasm here, for had he been a knower of all secrets he would have known the secret of his own downfall.