Acts 4:33

The power in the witness of the believers was their love for one another (cf. John 13:35), not just their rhetorical (homiletical) and miraculous power. Notice the central place the resurrection of Jesus occupied in their witness. His resurrection fulfilled prophecy and identified Jesus as the Messiah (cf. Acts 2:29-32). The abundant grace that rested upon these Christians was the divine enablement that God granted them to speak and to live as they did. This grace was on the young church as it had been on the young Jesus (cf. Luke 2:40).