The early believers were predominantly Jews who believed in their messiah the Lord Jesus Christ. They devoted themselves to the apostles doctrines and prayer and fellowship and breaking bread from house to house Acts 2:41-46. Saint Peter gave us the keys to the kingdom in Acts 2:38-41. 95% of Protestants and Catholics don’t believe or are unbelievers. I’m a Catholic that believes the word of God. I’m now a disciple of the Lord Jesus Christ while making other disciples on my journey with the Lord