Romans 1:1-7 (Part 3: A Commission)

Paul, a servant of Christ Jesus, called to be an apostle and set apart for the gospel of God— ² the gospel he promised beforehand through his prophets in the Holy Scriptures ³ regarding his Son, who as to his earthly life was a descendant of David, ⁴ and who through the Spirit of holiness was appointed the Son of God in power by his resurrection from the dead: Jesus Christ our Lord. ⁵ Through him we received grace and apostleship to call all the Gentiles to the obedience that comes from faith for his name’s sake. ⁶ And you also are among those Gentiles who are called to belong to Jesus Christ.⁷ To all in Rome who are loved by God and called to be his holy people:Grace and peace to you from God our Father and from the Lord Jesus Christ.

Part 3... Paul has already spoke of his renewed identity, as well as telling the gospel. And in the last 3 verses of this passage (5-7), Paul gives the church of Rome a commission.

A commission has a rather lengthy definition. It can be used as both a noun and verb.

com·mis·sionnoun
the act of committing or giving in charge.
an authoritative order, charge, or direction.
authority granted for a particular action or function.
a document granting such authority.

verb
to give a commission to
to authorize; send on a mission; to give the order that places a warship, military command, etc., in a state of complete readiness for active duty. 

Though the common use of the word "commission" generally has to do with money, it's a very military word. And that's what Paul is doing here.

"You are called to obedience. You are called to belong to Jesus Christ. These are your orders."

1 John 5 says this of obedience: 

2 This is how we know that we love the children of God: by loving God and carrying out his commands. 3 In fact, this is love for God: to keep his commands. And his commands are not burdensome, 4 for everyone born of God overcomes the world. This is the victory that has overcome the world, even our faith.

Therefore, we can see that obedience is the fruit of love for God. This is the fruit that the Christian bears. This is the commission, the authoritative order, Paul asks of the early Christians... and of us.

Love God. Obey God. Be His.