Charles Ellicott Commentary Daniel 2:30

"But as for me, this secret is not revealed to me for any wisdom that I have more than any living, but to the intent that the interpretation may be made known to the king, and that thou mayest know the thoughts of thy heart." — Daniel 2:30 (ASV)

For any wisdom — that is, by reason of any wisdom of his own, but “for the sake of the king.”