As the Last Supper came to a close, Jesus prayed that his followers would be one, as he is one with the Father. Years later, Paul wrote in Ephesians 4 that Christians should make every effort to maintain unity. He also wrote to the Corinthians (1 Cor 1:10ff) and Galatians (Gal 5:19-21) that factions are unacceptable in his church. Yet today, there are an estimated 1000 faith groups in North America alone which consider themselves Christian. (religioustolerance.org ).