1 Thessalonians 4:1-8

Furthermore, brothers and sisters, we exhort you in the name of the LORD JESUS, to follow the instructions we gave you on living to please GOD, and that you do so more and more. For you know the commandments we gave you through the LORD JESUS: that it is the will of GOD for you to be holy and to abstain from sexual immorality. Each one of you should know how to control his own body, with holiness and honor, and not in lustful desires like the Gentiles who do not know GOD. And no one is to take advantage of, or to otherwise cheat a brother or sister in this matter, because the LORD will punish those who do such things, just as we have already warned you and solemnly testified. For GOD did not call us to be unholy, but to be holy. Therefore, anyone who rejects this, is not rejecting man, but GOD: the same GOD who gave his HOLY SPIRIT to you.