John Gill Commentary Daniel 5:9

"Then was king Belshazzar greatly troubled, and his countenance was changed in him, and his lords were perplexed." — Daniel 5:9 (ASV)

Then was King Belshazzar greatly troubled A second time, and perhaps more than before; since he had conceived some hope that his wise men would have informed him what this writing was, and the meaning of it; but finding that they were nonplussed by it, it gave him still greater uneasiness:

and his countenance was changed in him ; again; very likely, upon the coming in of the wise men, he had a little recovered himself, and became more composed and serene; which appeared in his countenance; but, upon this disappointment, his countenance changed again, and he turned pale, and looked ghastly:

and his lords were astonished ; were in the utmost consternation and confusion, when they understood that the writing could neither be read nor interpreted; neither the dignity of their station, nor their numbers, nor their liquor, could keep up their spirits; so that the king had not one with him, to speak a comfortable word to him, or give him any advice in this his time of distress; they were all in the same condition with himself.