Read Acts 10:34-43
34 Peter began to speak: “I now realize that it is true that God treats everyone on the same basis. 35Those who worship him and do what is right are acceptable to him, no matter what race they belong to. 36You know the message he sent to the people of Israel, proclaiming the Good News of peace through Jesus Christ, who is Lord of all. 37You know of the great event that took place throughout the land of Israel, beginning in Galilee after John preached his message of baptism. 38You know about Jesus of Nazareth and how God poured out on him the Holy Spirit and power. He went everywhere, doing good and healing all who were under the power of the Devil, for God was with him. 39We are witnesses of everything that he did in the land of Israel and in Jerusalem. Then they put him to death by nailing him to a cross. 40But God raised him from death three days later and caused him to appear, 41not to everyone, but only to the witnesses that God had already chosen, that is, to us who ate and drank with him after he rose from death. 42And he commanded us to preach the gospel to the people and to testify that he is the one whom God has appointed judge of the living and the dead. 43All the prophets spoke about him, saying that all who believe in him will have their sins forgiven through the power of his name.”
Peter is preaching to gentiles (non Jews) about Jesus. He is explaining to these gentiles that Christ is not just for Jews but for gentiles too.
Lord help me to realise what Peter means when he says:
"All who believe in him will have their sins forgiven through the power of his name." - Acts 10:43