The document discusses the letter of James addressed to the twelve tribes dispersed among the gentiles, emphasizing the significance of his title as 'servant of God' over his familial ties to Jesus. It highlights the historical context of the Jewish dispersion and the ongoing existence of these tribes, mentioning their presence across various regions of the world during the apostolic age. The letter serves to encourage and provide guidance to the Christian believers among these tribes, recognizing their struggles and affirming God's care for them.