2 John 1:4; 2 John 1:10; 2 John 1:11

2 John 1:4

4 I rejoiced greatly that I found of thy children walking in truth, as we have received a commandment from the Father.

2 John 1:10

10 If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed:

2 John 1:11

11 For he that biddeth him God speed is partaker of his evil deeds.