In Caesarea there lived a Roman army officer named Cornelius, who was a captain of the Italian Regiment. He was a devout, God-fearing man, as was everyone in his household. He gave generously to the poor and prayed regularly to God. One afternoon about three o’clock, he had a vision in which he saw an angel of God coming toward him. “Cornelius!” the angel said. Cornelius stared at him in terror. “What is it, sir?” he asked the angel. And the angel replied, “Your prayers and gifts to the poor have been received by God as an offering! Now send some men to Joppa, and summon a man named Simon Peter. Acts 10:1-5 NLT

[Peter and his friends] arrived in Caesarea the following day. Cornelius was waiting for them and had called together his relatives and close friends. 
Acts 10:24 NLT

Peter told them, “You know it is against our laws for a Jewish man to enter a Gentile home like this or to associate with you. But God has shown me that I should no longer think of anyone as impure or unclean.  
Acts 10:28 NLT

“I see very clearly that God shows no favoritism. In every nation he accepts those who fear him and do what is right. This is the message of Good News for the people of Israel—that there is peace with God through Jesus Christ, who is Lord of all. They put him to death by hanging him on a cross, but God raised him to life on the third day. Even as Peter was saying these things, the Holy Spirit fell upon all who were listening to the message. The Jewish believers who came with Peter were amazed that the gift of the Holy Spirit had been poured out on the Gentiles, too. 
Acts 10:34b-36, 39b-40a, 44-45 NLT

Don’t retaliate with insults when people insult you. Instead, pay them back with a blessing. That is what God has called you to do, and he will grant you his blessing.
1 Peter 3:9b NLT