What did the Roman deputy do in response to Paul's miracle in Acts 13?
When the Roman deputy saw what was done—the sorcerer struck blind—he believed. He did not go through anything else, any actions, or any contortions; he simply believed, being astonished at the doctrine or teaching of the Lord. This was his response to the miracle.
Les explains that the Roman deputy, upon seeing the miracle performed by Paul, believed. He emphasizes that the deputy did not go through any additional actions or contortions; he simply believed, astonished at the doctrine or teaching of the Lord. Les also notes that this miracle was both performed by Paul and a prophetic act of God, and that the sorcerer's blindness pictured the nation of Israel's spiritual blindness, which would not last forever.
Then the deputy, when he saw what was done, believed, being astonished at the doctrine of the Lord.