Salvation is not a matter of racial identity or religious privilege but of true righteousness, which comes through the gospel.
With parables and warnings, Jesus told everyone in his day and ours to be ready for the coming of the Son of Man.
Because of a general persecution in Jerusalem, the believers were scattered and took the gospel to Judea and Samaria, where many believed in Christ.
God has always been with his people, in various ways and temporarily in Old Testament times and later and permanently in human flesh.