The Old Testament is normally divided into the three sections. The histories including the Pentateuch, the basic first five books, the great Law of Israel show God loving guidance and correction of Israel from nomad beginnings through all the trials and infidelities of the settled civilization in Palestine. The Wisdom books including the Psalms, the prayer book of Israel express the wisdom of Israel drawn from God for the practical art of living. The prophetic writings gather the warnings and promises of God expressed through those special messengers who strove to keep Israel faithful for the centuries before Christ. By all these means God was forming his people, preparing them for the fulfillment of his purpose in Christ. The New Testament is best divided into two sections. First come the four gospels, the record of the message of Good News brought by Jesus. Then the letters written by Paul and other apostolic figures to the nascent churches of Mediterranean Christianity, to give them instruction and help to solve their problems, but also to be a source of understanding and guidance for every generation of Christians. The last book of the Bible, the Revelation to John, sums all up in the vision of deliverance from persecution and a glorious establishment of the reign of God in the New Jerusalem.