'Preaching' in the Bible

Only it came to their ears that he who at one time was cruel to us is now preaching the faith which before had been attacked by him;

And I went up by revelation; and I put before them the good news which I was preaching among the Gentiles, but privately before those who were of good name, so that the work which I was or had been doing might not be without effect.

But, quite the opposite, when they saw that I had been made responsible for preaching the good news to those without circumcision, even as Peter had been for those of the circumcision

But you have knowledge that with a feeble body I was preaching the good news to you the first time;

But I, brothers, if I am still preaching circumcision, why am I still attacked? then has the shame of the cross been taken away.