1 Thessalonians 1:8

1:8 For from you the message of the Lord has echoed forth not just in Macedonia and Achaia, but in every place reports of your faith in God have spread, so that we do not need to say anything.

1 Thessalonians 3:2

3:2 We sent Timothy, our brother and fellow worker for God in the gospel of Christ, to strengthen you and encourage you about your faith,

1 Thessalonians 5:23

Conclusion

5:23 Now may the God of peace himself make you completely holy and may your spirit and soul and body be kept entirely blameless at the coming of our Lord Jesus Christ.