Romans 14:10

But thou [O weak one], why dost thou judge thy brother? or thou again [O strong one], why dost thou set at nought thy brother? for we shall all stand before the judgment-seat of God. [The fact that each is so great a sinner that Christ must needs die for him, should prevent the one from judging and the other from despising. Since Christ, having died, is able to justify whom he will, what folly is it to attempt to usurp Christ's office so as to condemn any who trust in him? The believer is not even judged of Christ, but is called into judgment that he may be justified-- 2 Corinthians 5:10; Romans 8:33]