Albert Barnes Commentary Daniel 4:18

"This dream I, king Nebuchadnezzar, have seen; and thou, O Belteshazzar, declare the interpretation, forasmuch as all the wise men of my kingdom are not able to make known unto me the interpretation; but thou art able; for the spirit of the holy gods is in thee." — Daniel 4:18 (ASV)

This dream I king Nebuchadnezzar have seen—This is the dream which I saw. He had detailed it at length as it appeared to him, without pretending to be able to explain it.

forasmuch as all the wise men of my kingdom...—(Daniel 4:7).

but thou art able...—See the notes at Daniel 4:9.