1 Thessalonians 4:3
For this is the will of God, your sanctification; that you abstain from sexual immorality

1 Thessalonians 5:16-18
Rejoice always, pray without ceasing, give thanks in all circumstances, for this is the will of God in Christ Jesus for you

A Christian lives as a citizen of a heavenly kingdom, awaiting for the Coming of the Lord Jesus Christ. To make my calling more sure and God's choice of me, I should be striving for holiness. Paul argues that one of the marks of a true Christian is that he knows how to control his body in a honorable manner, abstaining from all sexual immorailty. Paul also commands us to rejoice always. Why? The Lord Jesus Christ died for our sins and he is coming back again not to bring wrath, but salvation (1 Thessalonians 5:10-11). To give thanks in all circumstances means that a Christian should be putting on the "new man" reflecting the likeness of God and trusting God for his providence, blessings, and the coming glory that is to be revealed. Pray without ceasing refers to a constant communion with the heavenly Father, so that I might be sober-minded for the sake of my prayers. Father, help me be conformed to your will more and more. In Jesus Name, Amen.