[setter]

“Are you saying that God did not tell them anything and they made the whole thing up including the gospels (all written by Jews )?”

Why would God only pick Jews as the chosen people? If that is the case why should a non Jew follow christianity?

Shouldn’t any person who follows his teachings be one of the chosen people?

[Verginius Rufus]

Is it known whether Luke was a Jew or a Gentile?

[boatbums]

Why would God only pick Jews as the chosen people? If that is the case why should a non Jew follow christianity?

That's not how it all got started. Almighty God called out a man named Abram who came from Ur of the Chaldees, the birthplace of the Israelite and Ishmaelite patriarch Abraham. He was seeking the truth of the one true God. God made an everlasting covenant with Abram, who He now called Abraham, which means “father of many”. God told him that He would make of him a great nation and through him all the nations of the earth will be blessed:

“Go from your country and your kindred and your father’s house to the land that I will show you. And I will make of you a great nation, and I will bless you and make your name great, so that you will be a blessing. I will bless those who bless you, and him who dishonors you I will curse, and in you all the families of the earth shall be blessed” (Genesis 12:1-3)

Abraham and Sarah his wife had a son named Isaac. Isaac had a son named Jacob. God called Jacob, "Israel" which means "one who struggles with God". Jacob had 12 sons and it is from these twelve tribes/sons that the Nation of Israel descend. The land of Israel today is only a part of the total promised land God gave to Abraham:

“Look around from where you are, to the north and south, to the east and west. All the land that you see I will give to you and your offspring forever. I will make your offspring like the dust of the earth, so that if anyone could count the dust, then your offspring could be counted. Go, walk through the length and breadth of the land, for I am giving it to you” (Genesis 13:14-17).

Shouldn’t any person who follows his teachings be one of the chosen people?

The nation of Israel is named after Israel the patriarch. Unfortunately, the people of Israel seemed to also be in a constant struggle with God. Although He graciously took them unto Himself as His chosen people, they repeatedly turned their backs on Him. As a result, in Jeremiah 31:33–34, God promised a new covenant with Israel that would guarantee their obedience:

“This is the covenant I will make with the people of Israel after that time,” declares the Lord. “I will put my law in their minds and write it on their hearts. I will be their God, and they will be my people. No longer will they teach their neighbor, or say to one another, ‘Know the Lord,’ because they will all know me, from the least of them to the greatest,” declares the Lord. “For I will forgive their wickedness and will remember their sins no more.”

Israelites who come to God through faith in Christ enter the New Covenant and no longer have to struggle with God. By the grace of God, Gentiles who receive the Messiah of Israel are also included in the New Covenant. In Christ, Jews and Gentiles no longer have to struggle with God or with each other.

In Christ, the struggle is solved, and we have peace, as explained in Ephesians 2:11–22:

“Therefore, remember that formerly you who are Gentiles by birth and called ‘uncircumcised’ by those who call themselves ‘the circumcision’ (which is done in the body by human hands)—remember that at that time you were separate from Christ, excluded from citizenship in Israel and foreigners to the covenants of the promise, without hope and without God in the world. But now in Christ Jesus you who once were far away have been brought near by the blood of Christ.

“For he himself is our peace, who has made the two groups one and has destroyed the barrier, the dividing wall of hostility, by setting aside in his flesh the law with its commands and regulations. His purpose was to create in himself one new humanity out of the two, thus making peace, and in one body to reconcile both of them to God through the cross, by which he put to death their hostility. He came and preached peace to you who were far away and peace to those who were near. For through him we both have access to the Father by one Spirit.

“Consequently, you are no longer foreigners and strangers, but fellow citizens with God’s people and also members of his household, built on the foundation of the apostles and prophets, with Christ Jesus himself as the chief cornerstone. In him the whole building is joined together and rises to become a holy temple in the Lord. And in him you too are being built together to become a dwelling in which God lives by his Spirit.” (From What does Israel mean in the Bible?)

That promise God made to Abraham, Isaac and Jacob and their descendants? It has never been rescinded. They will one day inherit the land God promised.

[Cronos]

As Galatians 3 tells us, anyone who follows Christ is s descendent of Abraham. The Jews were the chosen nation. But we Christian’s are the expanded Israel, Israel who gave birth to the Christ, the saviour of the world.