1 Thessalonians 4:3-7

For this is the will of God, even your sanctification, that ye should abstain from fornication:

That every one of you should know how to possess his vessel in sanctification and honour;

Not in the lust of concupiscence, even as the Gentiles which know not God:

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.

For God hath not called us unto uncleanness, but unto holiness.