Jesus was sent only to Jews. He did not preach to anyone else unless the special circumstances warranted it. A Phoenician woman begged him for help. (
Matthew 15:22-24; Matthew10:5-6) Another exception was the Samaritan woman at the well.
The crowds he fed were all Jews. Gentiles were not yet invited....but their time was coming. Jews got first chance to fill the ranks of the Kingdom because of God's promise to Abraham.
The prophesies in Daniel fill in those gaps. He saw the march of world powers who had dealings with his people....interpreting King Nebuchadnezzar's dream, he began with Babylon, onto Medo-Persia, then Greece, then Rome and then Britain, later allied with America. The march of world powers ends there. In the days of the current world rulership, God brings his Kingdom in to "crush" all human rulerships out of existence and replaces them. (Daniel 2:44) We are deep into the time of the end.
The people who were not God's people were the Gentiles. It was unthinkable that hated Gentiles would ever attain God's blessing apart from the Jews.....but because they could never keep their covenant, God ditched them as his people and chose others from the Gentile nations to fill the ranks. (Matthew 22:1-14)
These were not circumcised in the flesh but were circumcised in heart. They would join their Jewish brothers unitedly serving their God as disciples of Jesus Christ.
OK...you are going to have to clarify this bit....who is Jesus Christ in your understanding? What does Jesus not have the power to fix? You've lost me.
Could it be that you are just a little too easily influenced perhaps? A Muslim accent?
Wowsers!
Proverbs 18:1 helps there. We can get carried away with the thoughts in our own heads......that is never good. We need the company of balanced Christians who are not extreme in either direction. God recommends somewhere in the middle is always a good balanced position. Zeal is good but unbalanced zeal is fanaticism. We are human and need to enjoy life as well as the serious stuff. Soon I believe the world will be plunged into a situation that it will not know how to handle. We all need to use the time left wisely.
The dress code applies only to us. If you don't own a suit but have dressed neatly, no one will care. It shows that you have respect for God's worship and that will be appreciated. We have had people turn up in shorts and T-shirts. Come....and be welcome! Just listen and learn. Are you currently having a Bible study? If not, you'll probably be offered one.
Try and study with an elder. You already have good Bible knowledge so you will need someone experienced.
All the best....