The background is that Paul was given responsibility to deliver a large donation from the churches in Macedonia to the church in Jerusalem. Paul was taking with him men of proven character. He did not take these men as bodyguards. He took them as accountants. They were to be his witnesses that he delivered every penny he received. In fact, I would guess that Paul never personally touched the money.
Some people say, "It does not matter what other people say, as long as I know in my heart I did the right thing." Paul would say, "It DOES matter what people think."
I know, "Haters gonna hate." But we must take every precaution to keep our integrity beyond question. Don't put ammunition in the critic's hands. And we represent Christ. Therefore, there is more than our reputation at stake. There is His.
Take every precaution to keep it clean and eliminate every criticism beforehand. Always watch your six.