1 Thessalonians 5:21
Put everything [i.e., speakers and their messages] to the test, [then] hold onto what is good.
John 7:24
Do not make judgments based [merely] on how things look, but make judgments on how they really are."
Romans 12:2
And you people must not be conformed to [the values and standards of] this age, but you should become transformed [i.e., changed in attitude and action] by having your mind renewed [i.e., to think in a totally different way]. Then you will be able to determine [and practice] God's will, the thing that is good, and acceptable and perfect.
1 Corinthians 6:2-5
Or, do you not know that God's people will judge the world? [Note: Possibly this refers to Christians somehow assisting Christ on the judgment day]. And if the world is [to be] judged by you [at that time], are you not capable of judging small matters [now]?
Galatians 2:11-14
But when Cephas came to Antioch [of Syria], I confronted him personally [about a matter] for which he deserved to be condemned.