“Paul, Silvanus, and Timothy, to the church of the Thessalonians in God our Father and the Lord Jesus Christ: Grace to you and peace from God our Father and the Lord Jesus Christ.” 2 Thessalonians 1:1-2.
“Finally then, brethren, we urge and exhort in the Lord Jesus that you should abound more and more, just as you received from us how you ought to walk and to please God; for you know what commandments we gave you through the Lord Jesus. For this is the will of God, your sanctification: that you should abstain from sexual immorality…” 1 Thessalonians 4:1-3.
“If you endure chastening, God deals with you as with sons; for what son is there whom a father does not chasten? But if you are without chastening, of which all have become partakers, then you are illegitimate and not sons. Further, we have had human fathers who corrected us, and we paid them respect. Shall we not much more readily be in subjection to the Father of spirits and live? For they indeed for a few days chastened us as seemed best to them, but He for our profit, that we may be partakers of His holiness.” Hebrews 12:7-10.