Peter Reports to the Church
When Peter gets back everyone is upset with him for sharing the word of God with the Gentiles. But he says that God told him to do it in a vision and everyone is happy with him.
These visions happen a lot in the bible. How could you tell the difference between a vision from God and a regular hallucination? Also, how could you tell if someone was simply lying?
The Church in Antioch
More people were teaching the word of God, many only taught to the Jews, but some also taught to others. One of these places was Antioch where they spoke to the Hellenists.