Romans 3:4-6

UKJV(i) 4 God forbid: yea, let God be true, but every man a liar; as it is written, That you might be justified in your sayings, (o. logos) and might overcome when you are judged. 5 But if our unrighteousness commend the righteousness of God, what shall we say? Is God unrighteous who takes vengeance? (I speak as a man) 6 God forbid: for then how shall God judge the world?