Acts 22:29

Then immediately those who were about to examine him withdrew from him; and the commander was also afraid after he found out that he was a Roman, and because he had bound him.

1. They had already overstepped their authority, by binding him. No beating. Just binding him was in violation of the law.

2. They were now afraid of Paul.

1. He speaks Hebrew to the Jews.

2. He speaks Greek to the Romans.

3. He is a free born Roman citizen.

4. He could have them arrested for this violation of his rights.