Acts 17:11
Now these people [in Berea] had more character than those in Thessalonica because they [not only] received the message with an open mind but [also] examined the [Old Testament] Scriptures every day to see if what they had heard was really true.
2 Corinthians 6:17
Therefore, the Lord says [Isa. 52:11], "You people should leave their company [i.e., unbelievers, verse 14] and separate yourselves from them, and do not touch anything unclean [i.e., their evil practices], and I will welcome you."
1 Timothy 4:15
Be attentive to these things [i.e., all of the foregoing]; be involved in [practicing] them, so that your progress [in the ministry] will be evident to everyone.