Job 13:10
He will surely reprove you if you secretly show partiality.
Job 42:7-8
It was so, that after Yahweh had spoken these words to Job, Yahweh said to Eliphaz the Temanite, "My wrath is kindled against you, and against your two friends; for you have not spoken of me the thing that is right, as my servant Job has.
Psalm 50:21-22
You have done these things, and I kept silent. You thought that I was just like you. I will rebuke you, and accuse you in front of your eyes.
Psalm 82:2
"How long will you judge unjustly, and show partiality to the wicked?" Selah.
James 2:9
But if you show partiality, you commit sin, being convicted by the law as transgressors.