Albert Barnes Commentary Job 31:36

"Surely I would carry it upon my shoulder; I would bind it unto me as a crown:" — Job 31:36 (ASV)

Surely, I would take it upon my shoulder - This refers to the book or bill of indictment that the Almighty would write in Job's case. Job says that he has such confidence that what God would record in his case would be in his favor, such confidence that He had no charge of hypocrisy against him, and that He who knew him altogether would not bring such an accusation against him, that he would carry it triumphantly on his shoulders. It would be all that he could desire. This does not refer to what a judge would decide if the cause were submitted to him, but to a case where an opponent or adversary in court would bring all that he could say against him.

He says that he would carry even such a bill on his shoulders in triumph, and that it would be a full vindication of his innocence. It would provide him the best vindication of his character and would be what he had long desired.

And bind it as a crown to me - I would regard it as an ornament—a diadem. I would bind it on my head as a crown is worn by princes and would march forth exultingly with it. Instead of covering me with shame, it would be the source of rejoicing, and I would exhibit it everywhere in the most triumphant manner. It is impossible for anyone to express a more entire consciousness of innocence from charges alleged against him than Job does by this language.