In chapter 16, we found out that Paul was a Roman citizen. Being a citizen of this vast empire was a great privilege. There were only two ways to gain Roman citizenship; you could either purchase it (something only the rich could afford to do), or be lucky enough to inherit it from your parents when you were born. Paul was born a Roman citizen.
The reason why you would want to be a Roman citizen in the first century is that they were given rights others were not guaranteed. The rights to marry another Roman citizen, to sue and to be sued, to have a legal trial, and to not be crucified were just some of the benefits offered to those privileged enough be Roman citizens.
As we saw in chapter 21, Paul had already used his citizenship to get out of being flogged (Romans, legally, could not be tortured or whipped). In chapter 25 Paul exercised another of his rights–the right to appeal to Caesar. Paul knew that if he was brought back to Jerusalem, the men that had pledged to kill him would probably succeed. He also knew that he had to get to Rome to testify there. Thus Paul used his privilege to get to where he needed to go, so he could do what he was required to do (though, as we shall see in the coming chapters, this journey would not be an easy one).
If you were born in the West (especially the United States), you, like Paul, are privileged. You have rights like freedom of speech, freedom of religion, and freedom of the press. But there are many parts of the world today where these rights that are taken for granted are only the ideals of dreamers. There are Christians throughout the world who have to look over their shoulder as they travel to church (if a public place of worship is even allowed) and others who are worshiping with the knowledge that every gathering may easily be their last.
There is another privilege you share with Paul: you are a citizen of Heaven. This citizenship cannot be purchased or inherited. It is not exclusive. The Kingdom of Heaven (or, Kingdom of God) is open to anyone. The poor and the rich, the weak and the strong, the lost and the found are all welcome. The cost of this privilege was paid for by God with the blood of His Son. It is offered to any who will receive it.
Paul was first and foremost a citizen of Heaven. He lived his life devoted to advancing the Kingdom and the One who will establish it in its fullness. The rights his Roman citizenship granted him were nothing compared to those his Lord did. That being said, Paul exercised his privilege as a Roman in order to promote God’s Kingdom as a Christian. He wanted to make sure as many people as possible would become citizens of the Kingdom. You also can use your rights as a citizen of your country to further the cause of the Kingdom. Exercise your earthly privileges in a way that leads others to receive heavenly ones.