Eph 6:19-20 and for me, that utterance may be given to me, that I may open my mouth boldly to make known the mystery of the gospel, for which I am an ambassador in chains; that in it I may speak boldly, as I ought to speak.

The United States has around 189 ambassadors around the world.
An ambassador is the ranking government representative of the United States stationed in a foreign capital or country and represents the president in matters of foreign policy.
The Ambassador is not the Chief Executive nor the Commander in Chief. That is the job of the President.
The Ambassador simply speaks for the President and the citizens of the United States in the country where he/she is posted.
Ambassadors are usually protected and given diplomatic immunity but that does not always keep them safe as was the case in Iran in 1979 or Benghazi in 2012.
Paul, also, described himself as an ambassador – the representative of Christ to make know the mystery of the gospel.
He made no claim to power, other than the boldness to preach the gospel.
He made no policy but was directed by the Holy Spirit to teach the early church the beliefs and behavior of a citizen of heaven.
Paul was not safe. Indeed, his life was in danger as he was heading for an encounter with Caesar.
As followers of Christ, you and I are ambassadors in an ever-changing and threatening world.
We are not safe but that does not prevent us from speaking the gospel in a hostile environment, as Paul did.
We are called upon by our Lord and Savior to speak for Him and share His marvelous good news of salvation.