Acts 20:21

Testify both to - Jews and - Greeks - He always began with the Jews; and, in this case, he had preached to them alone for three months, Acts 19:8-10, and only left their synagogues when he found, through their obstinacy, he could do them no good.

Repentance toward God, etc. - As all had sinned against God, so all should humble themselves before him against whom they have sinned; but humiliation is no atonement for sin; therefore repentance is insufficient, unless faith in our Lord Jesus Christ accompany it. Repentance disposes and prepares the soul for pardoning mercy; but can never be considered as making compensation for past acts of transgression. This repentance and faith were necessary to the salvation both of Jews and Gentiles; for all had sinned, and come short of God' s glory. The Jews must repent, who had sinned so much, and so long, against light and knowledge. The Gentiles must repent, whose scandalous lives were a reproach to man. Faith in Jesus Christ was also indispensably necessary; for a Jew might repent, be sorry for his sin, and suppose that, by a proper discharge of his religious duty, and bringing proper sacrifices, he could conciliate the favor of God: No, this will not do; nothing but faith in Jesus Christ, as the end of the law, and the great and only vicarious sacrifice, will do; hence he testified to them the necessity of faith in this Messiah. The Gentiles might repent of their profligate lives, turn to the true God, and renounce all idolatry: this is well, but it is not sufficient: they also have sinned, and their present amendment and faith can make no atonement for what is past; therefore, they also must believe on the Lord Jesus, who died for their sins, and rose again for their justification.