1 Thessalonians 5:21
Prove all things, hold fast the good;
John 7:24
Judge not according to the appearance, but judge a righteous judgment.
Romans 12:2
and be not conformed to this life, but be transformed by the renewing of the mind, that you may prove what is the will of God which is good and well-pleasing and perfect.
1 Corinthians 6:2-5
Do you not know that the saints shall judge the world? And if the world is judged by you, are you unworthy of the lowest courts?
Galatians 2:11-14
But when Peter came to Antioch I opposed him to his face, because he was to blame.