Job responds to Zophar :
Will you speak wickedly on God’s behalf? Will you speak deceitfully for him?
Will you show him partiality? Will you argue the case for God?
Would it turn out well if he examined you? Could you deceive him as you might deceive a mortal?
He would surely call you to account if you secretly showed partiality.
(Job 13:7-10 NIV)
A poor defence of God is a sin.