8 And he went into the synagogue and spoke boldly for three months, reasoning and persuading concerning the things of the kingdom of God. 9 But when some were hardened and did not believe, but spoke evil of the Way before the multitude, he departed from them and withdrew the disciples, reasoning daily in the school of Tyrannus. 10 And this continued for two years, so that all who dwelt in Asia heard the word of the Lord Jesus, both Jews and Greeks. 11 Now God worked unusual miracles by the hands of Paul, 12 so that even handkerchiefs or aprons were brought from his body to the sick, and the diseases left them and the evil spirits went out of them.

Matthew Henry's Commentary on Acts 19:8-12

Commentary on Acts 19:8-12

(Read Acts 19:8-12)

When arguments and persuasions only harden men in unbelief and blasphemy, we must separate ourselves and others from such unholy company. God was pleased to confirm the teaching of these holy men of old, that if their hearers believed them not, they might believe the works.