The gospel is for everyone in the world

Acts 10:1-16
Cornelius a centurion in what was known as the Italian Regiment. He and all his family were devout and God-fearing; he gave generously to those in need and prayed to God regularly.
Cornelius was an adherent to Jewish faith and worship, but not a circumcise convert.
Peter saw a vision what heaven opened and something like large sheet being let down to earth by its four corners. It contained all kinds of four-footed animals. Then a voice told him, "Get up, Peter, Kill and eat." Peter replied, "Surely not, Lord! I have never eat anything impure or unclean". The voice spoke to him "Do not call anything impure that God has made clean." This happened three times.
Why?
Up to this point the gospel has been preached only to Jews, converts to Judaism and Samaritans (who observed the law of Moses). Now God steps to make it plain that the message is for everyone.
God prepares the Roman officer, Cornelius, and he prepares Peter. Three times the vision and message come - apparently instructing Peter to break the Jewish food laws.
1)All family devote to the Lord 2)God fearing 3)give generously to those in need 4)pray to God regularly are good living styles for a Christian.
How?
The gospel is for everyone in the world, and it is started from Jews.