"The Lord's hand was with them, and a great number of people believed and turned to the Lord." (Acts 11:21)
When Peter returns to Jerusalem, the circumcised believers criticise him: you went into the house of uncircumcised men and ate with them. Peter lays out the whole sequence: the vision, the Spirit's explicit instruction to go without hesitation, the falling of the Spirit on the Gentiles as he began to speak, and his memory of Jesus' words about the baptism of the Holy Spirit. His conclusion is unanswerable: if God gave them the same gift he gave us when we believed in the Lord Jesus Christ, who was I to think that I could stand in God's way? When the council hears this, they have no further objections and praise God: so then, even to Gentiles God has granted repentance that leads to life.
Those scattered by the persecution after Stephen's death travel as far as Phoenicia, Cyprus, and Antioch, speaking the word only to Jews. But some of them, men from Cyprus and Cyrene, go to Antioch and begin to speak to Greeks also, telling them the good news about the Lord Jesus. The Lord's hand is with them and a great number of people believe and turn to the Lord. The church in Jerusalem sends Barnabas to Antioch to investigate. He arrives, sees the evidence of the grace of God, and is glad. He encourages everyone to remain true to the Lord with all their heart. A great number of people are brought to the Lord.
Barnabas then goes to Tarsus to look for Saul. He brings him to Antioch and for a whole year the two of them meet with the church and teach great numbers of people. It is in Antioch that the disciples are first called Christians. The Catechism notes that the name Christian is not merely a social label but an identity: those who bear it are called to live in conformity with Christ, the anointed one, in whose name and by whose Spirit they act (CCC 1269).
Brothers and sisters, the church at Antioch was founded by unnamed men from Cyprus and Cyrene who simply began talking to Greeks about the Lord Jesus. Not apostles, not trained evangelists. People who had heard the word and could not stop sharing it. The Lord's hand was with them. It is the same hand. Use it.
Lord God, your hand was with the unnamed evangelists who founded the church at Antioch. Place your hand with us as we speak your word to the people in front of us. Make us Barnabases: people who arrive where you have already been working and encourage what they find there. Through Christ our Lord. Amen.