Will you speak unrighteously ... deceitfully for him?

Job uses these two questions to rebuke his friends for speaking unrighteously. Alternate translation: "You think that you are speaking for God, but you are speaking unrighteously. You are speaking deceitfully." (See: rc://en/ta/man/translate/figs-rquestion and rc://en/ta/man/translate/figs-parallelism and rc://en/ta/man/translate/figs-irony)

talk deceitfully

"lie" or "tell lies"