Acts 19:10

They were about twelve men in all.

He entered into the synagogue and spoke boldly for a period of three months, reasoning and persuading about the things concerning God’s Kingdom.

But when some were hardened and disobedient, speaking evil of the Way before the multitude, he departed from them and separated the disciples, reasoning daily in the school of Tyrannus.

God worked special miracles by the hands of Paul,

so that even handkerchiefs or aprons were carried away from his body to the sick, and the diseases departed from them, and the evil spirits went out.

But some of the itinerant Jews, exorcists, took on themselves to invoke over those who had the evil spirits the name of the Lord Jesus, saying, “We adjure you by Jesus whom Paul preaches.”