Contradiction with Proverbs 17:15
This verse states that justifying the wicked and condemning the just is an abomination, which implies support for fairness, unlike Proverbs 18:5, which suggests that it is wrong to favor the wicked.
Proverbs 17:15: He that justifieth the wicked, and he that condemneth the just, even they both [are] abomination to the LORD.
Contradiction with Exodus 23:7
This verse commands to keep far from a false matter and not slay the innocent, promoting the idea of not favoring the wicked, contrasting with the suggestion that such favoritism occurs in Proverbs 18:5.
Exodus 23:7: Keep thee far from a false matter; and the innocent and righteous slay thou not: for I will not justify the wicked.
Contradiction with Isaiah 5:23
This verse condemns justifying the wicked for a reward, which is the opposite of the acceptance implied about perverting judgment in Proverbs 18:5.
Isaiah 5:23: Which justify the wicked for reward, and take away the righteousness of the righteous from him!
Contradiction with Deuteronomy 1:17
This verse instructs judges to be impartial and not respect persons in judgment, directly opposing the unfair impartiality mentioned in Proverbs 18:5.
Deuteronomy 1:17: Ye shall not respect persons in judgment; [but] ye shall hear the small as well as the great; ye shall not be afraid of the face of man; for the judgment [is] God's: and the cause that is too hard for you, bring [it] unto me, and I will hear it. [respect...: Heb. acknowledge faces]