1 Paul, a servant of Jesus Christ, called to be an apostle, separated unto the gospel of God,…6 Among whom are ye also the called of Jesus Christ: 7 To all that be in Rome, beloved of God, called to be saints: Grace to you and peace from God our Father, and the Lord Jesus Christ. 
Separate – to set aside a person for a particular task or function.
Saints – Those set apart for God
Paul was set aside as the apostle to the Gentiles. He saw himself as having been purchased and appointed for the specific job of preaching the gospel. His life was not his own. He was the potter to be used by the clay. He was the instrument to be used by the master builder. He was the ambassador to bring the King’s message.
The words “sanctify, sanctification, saint, and holy,” are all from the same Greek root and have basically the same meaning, namely, “set apart,” to be translated and interpreted according to their context.
Just like Paul and the Roman believers were set aside by God and for God so have you and I. Just like Paul we have been set aside for a specific purpose. Paul implored the Ephesian believers to “walk worthy” of their calling (Eph 4:1).
Biblically, though, the term “saint” is correctly applied to anyone who believes Jesus Christ is Lord. To believe in Jesus demands obedience and conformity to His will. A saint bears true and faithful witness to Christ in speech and lifestyle. To be a saint is a present reality when a believer seeks to let the Spirit form Christ within (Rom. 8:29; Gal. 4:19; Eph. 4:13). 
Here in this passage we can see several important facts about a saint.
1. The Purpose of a Saint – v. 1 – “Seperated unto the gospel of God.”
In verse 8 we see that the faith of the Roman believers was contagious. They were obedient to the faith. They had been separated unto it and were sharing it so much that their faith was being spoken of around the world.
Jesus left us with a work to do. He called you out, set you aside, for a specific job – getting His message to the world. What are you doing about this or have you neglected the very thing you were set aside to do?
2. The Person of a Saint – v. 6 – “Called of Jesus Christ”
A saint is not called of himself. A saint does not become a saint of his own power rather he is called to be a saint by a Person and that Person is Jesus Christ. Paul was separated by Christ on the Damascus Road. These Roman believers were called, or separated by Christ at some point in their life. You, my friend, if you are a born again Christian, on the day you repented and believed you were separated by that same Person, Jesus Christ.
That same person is the one that will continue to sanctify you and set you apart. He is conforming you to His own image. It is by Him and for Him that we are to live everday as Saints. Our whole life as Saints is based upon the Person of Jesus Christ.
If you are not focused on Him you are missing the very reason for your new life.
3. The Position of a Saint – v. 7
Though you and I are called, set aside for the Master’s use. We are separated to the Great Commission. We have a holy work to do. You should know that before God you are already holy. You are already purified. In His eyes you have the righteousness of Jesus Christ and there is nothing you can do to become any holier. Christ did it all and gave you all His righteousness.
You were called to be a saint at salvation and God made you one. Now He simply wants you to walk like what you have already been made. The enemy, Satan, will come and tell you that you are filthy, wicked, and an unworthy to be a son of God.
But those are lies. You are worthy by the blood of Christ. You are of the household of God now. God loves you – not because of what you do but because of what He has done for you and in you. Don’t forget that! If Satan can get you to believe lies he has you beat. Believe only the truth and that is that – You are a holy child of the King of Kings!
If you were made the President of South Africa then you would be expected to behave and live like the President should live. You have been made a child of God and God wants you to live like someone who carries His name should live – that way can be found in the first born Son Jesus Christ.
Conclusion: Be a saint today. Walk worthy of your calling (Eph 4:1). Focus on the work you have been set aside to do – proclaim the King’s message. Focus on the Person today – Jesus Christ. Focus on your position today – you have been sanctified, made holy.
 The Holy Bible: King James Version. 2009 (Electronic Edition of the 1900 Authorized Version.) (Ro 1:6–7). Bellingham, WA: Logos Research Systems, Inc.
 Wuest, K. S. (1997). Wuest’s word studies from the Greek New Testament : For the English reader. Grand Rapids: Eerdmans.
 Brand, C., Draper, C., England, A., Bond, S., Clendenen, E. R., Butler, T. C., & Latta, B. (2003). Holman Illustrated Bible Dictionary (1432). Nashville, TN: Holman Bible Publishers.