1 Thessalonians 4:3, 6
1 Thessalonians 4:3 KJV
For this is the will of God, even your sanctification, that ye should abstain from fornication
1 Thessalonians 4:6 KJV
that no man go beyond and defraud his brother in any matter: because that the Lord is the avenger of all such, as we also have forewarned you and testified.