You are judging by appearances. If anyone is confident that they belong to Christ, they should consider again that we belong to Christ just as much as they do. – 2 Corinthians 10:7 NIV
Christians all believe in Jesus. When we get caught up in arguments about the difference between doctrines, the Lord can settle our minds.
We all deserve to be treated with love and respect, so instead of judging others or trying to disprove various theological points, we can simply love one another.
Jesus asked us to love one another the way He loves us. Amen.