Who are we that we should judge?

All religions teach that we should love one another; that we should seek out our own shortcomings before we presume to condemn the faults of others, that we must not consider ourselves superior to our neighbours! We must be careful not to exalt ourselves lest we be humiliated.
Who are we that we should judge? How shall we know who, in the sight of God, is the most upright man? God’s thoughts are not like our thoughts! How many men who have seemed saint-like to their friends have fallen into the greatest humiliation. Think of Judas Iscariot; he began well, but remember his end! On the other hand, Paul, the Apostle, was in his early life an enemy of Christ, whilst later he became His most faithful servant. How then can we flatter ourselves and despise others?
Let us therefore be humble, without prejudices,  preferring others’ good to our own! Let us never say, ‘I am a believer but he is an infidel’, ‘I am near to God, whilst he is an outcast’. We can never know what will be the final judgment! Therefore let us help all who are in need of any kind of assistance.

`Abdu'l-Bahá, Paris Talks, P. 147