Judge not, that ye be not judged, ye shall be judged and with what measure ye mete, it shall be measured to you again.
St. Matthew, vii.1,2
Kindle not the coals of sinners by rebuking them, lest thou be burnt with the flame of the fire of their sins.
Forbear to judge for we are sinners all.
Give your decisions, never your reasons; your decisions may be right, your reasons are sure to be wrong.
Earl of Mansfield
Judgement is not the knowledge of fundamental laws; it is knowing how to apply a knowledge of them.
No man should be judged by others here in this life, for the good or evil deeds that they do. Nevertheless deeds may lawfully be judged, but not the men, whether they be good or evil.
The Cloud of Unknowing, xxix
Abu jariya, an inhabitant of Basra, coming to Medina and being convinced of the inspired mission of Prophet Muhammad asked him, according to a Muslim historian, for some great rule of conduct.
“Speak no evil of no one”, answered the prophet.
Sayings of the Prophet