Paul in Corinth
They tried preaching to the Jews there, but they were reviled so they instead went to preach to the gentiles. The lord told Paul not to be afraid, no one will attack you here. He stayed a year and a half teaching the word of God. The Jews tried to make a united attack on Paul, but Gallo convinced them not to, so they seized Sosthenes, the ruler of the synagogue and beat him up. Gallo paid no attention to any of this.
What is the message here? Rile up a crowd, divert them toward someone else, and then ignore the fallout?
Paul Returns to Antioch
Paul did some travelling and preached along the way.
Apollos Speaks Boldly in Ephesus
Apollos was speaking in the synagogue but only knew of John. The disciples taught him about Jesus and then he started spreading the word.
I don't have much commentary, it's pretty much the same story over and over.