Albert Barnes Commentary Daniel 2:36

"This is the dream; and we will tell the interpretation thereof before the king." — Daniel 2:36 (ASV)

This is the dream; and we will tell the interpretation thereof before the king - Daniel here speaks in his own name and in the name of his companions. Hence, he says, “we will tell the interpretation.” It was in answer to their united supplications (Daniel 2:18) that this meaning of the vision had been made known to him; and it would have been not only a violation of the rules of modesty, but an unjust assumption, if Daniel had claimed the whole credit of the revelation for himself. Though he was the only one who addressed the king, yet he seems to have desired that it would be understood that he was not alone in the honor which God had conferred, and that he wished that his companions should be justly remembered. Compare Daniel 2:49.