John Gill Commentary Job 15:13

"That against God thou turnest thy spirit, And lettest words go out of thy mouth?" — Job 15:13 (ASV)

That you turn your spirit against God
Not against men, his friends only, but against God himself, being filled with wrath and indignation at him; showing the enmity of his heart unto him, and committing hostilities upon him, stretching out his hand, and strengthening himself against him, running upon him, on the thick bosses of his buckler, as after expressed:

and let [such] words go out of your mouth ?
as in (Job 9:22) (10:3) (12:6) (13:22-27) .