Mark chapter 16 verse 9 to 20 is no verse. It is longer ending of Mark. Even it is not in the British library in London
Mark 28:19 is the one that said the best
We spread the gospel of Christ with any means of communication because we believe that our Lord is a great Loed and His Word is a great Word
Acts 26:26 For the king knoweth of these things, before whom also I speak freely: for I am persuaded that none of these things are hidden from him; for this thing was not done in a corner.
Apostle Paul didn't preach around corner, he preach where everyone would see him