Some corrections.
You say that Jesus came to the Jews and the gentiles but if you read your Bible you will see that Jesus said he only came for the lost sheep of Israel.
Matthew 15:24
But he answered and said, I am not sent but unto the lost sheep of the house of Israel.
Gentiles were grafted in after the Israelite's were broken off because of unbelief.
You can read about this in Romans 11:11-24
Lost sheep of israel, are those who are born again. What's your point with Romans. The bible is all about saving the world, read paul's letter.
If your a lost sheep that means you have not been born again yet.
Something to understand is that Jesus spoke in parables so that people would not understand and be saved. Jesus came for his elect not the goats.
Mark 4:11
And he said to them, You* have been given to know the mystery of the kingdom of God, but to those who are outside, all things happen in parables;
Mark 4:12
in order that seeing, they may see and yet may not know, and hearing, they may hear and yet may not understand; lest they should turn again and their sins might be forgiven them.