1 Thessalonians 3:2-4

3:2 And sent Timotheus, our brother, and minister of God, and our fellowlabourer in the gospel of Christ, to establish you, and to comfort you concerning your faith: 3:3 That no man should be moved by these afflictions: for yourselves know that we are appointed thereunto. 3:4 For verily, when we were with you, we told you before that we should suffer tribulation; even as it came to pass, and ye know.

1 Thessalonians 3:13

3:13 To the end he may stablish your hearts unblameable in holiness before God, even our Father, at the coming of our Lord Jesus Christ with all his saints.