John 13:17
If you know these things, you will be happy if you practice them.
John 15:9-10
"Just as the Father has loved me, [so] I have also loved you. You should continue to receive [or, respond to] my love. [Note: The next verse tells how this can be done].
John 15:14
You people are my friends if you do what I command you to.
Romans 16:17
Now I urge you, brothers, watch out for those who are causing divisions and occasions for falling [away from God over matters] contrary to the teaching you have learned, and withdraw from them [i.e., stop listening to their false teaching].
1 Corinthians 5:11
But I wrote to you not to associate with anyone claiming to be a [Christian] brother who is [guilty of being] sexually immoral, or greedy, or an idolater, or who speaks abusively, or a drunkard, or a swindler. Do not even eat [a social meal] with such a person.
Ephesians 5:11
Do not have fellowship with [people who practice] worthless deeds of darkness [i.e., sinful living], but expose them instead.
2 John 1:10-11
If anyone comes to you [i.e., to your meetings] who does not bring this teaching [about Christ], you should not welcome him into your home or give him [any] greetings [i.e., suggesting approval or endorsement].
Revelation 18:4
Then I heard another voice from heaven, saying, "Come out of her, my people, so that you do not share in her sins, and so that you do not receive her plagues [i.e., judgments].