1 Thessalonians 4:1-3

And now, beloved brothers and sisters, since you have been mentored by us with respect to living for God and pleasing him, I appeal to you in the name of the Lord Jesus with this request: keep faithfully growing through our teachings even more and more. For you already know the instructions we’ve shared with you through the Lord Jesus. God’s will is for you to be set apart for him in holiness and that you keep yourselves unpolluted from sexual defilement.