Whether it is lawful to judge?

Objections

Objection 1 : It would seem unlawful to judge. For nothing is punished except what is unlawful. Now those who judge are threatened with punishment, which those who judge not will escape, according to Mt. 7:1, "Judge not, and ye shall not be judged." Therefore it is unlawful to judge.
Objection 2 : Further, it is written (Rm. 14:4): "Who art thou that judgest another man's servant. To his own lord he standeth or falleth." Now God is the Lord of all. Therefore to no man is it lawful to judge.
Objection 3 : Further, no man is sinless, according to 1 Jn. 1:8, "If we say that we have no sin, we deceive ourselves." Now it is unlawful for a sinner to judge, according to Rm. 2:1, "Thou art inexcusable, O man, whosoever thou art, that judgest; for wherein thou judgest another, thou condemnest thyself, for thou dost the same things which thou judgest." Therefore to no man is it lawful to judge.