Proverbs 17:15 (KJV)
15 He that justifieth the wicked, and he that condemneth the just, even they both are abomination to the Lord.
Proverbs 17:3,4 (KJV)
3 The fining pot is for silver, and the furnace for gold: but the Lord trieth the hearts.
4 A wicked doer giveth heed to false lips; and a liar giveth ear to a naughty tongue.