The Bible, in Christian belief, is composed of two Testaments, bound in unity as being both concerned with Christ, how his advent was prefigured and prepared, how he fulfilled the divine plan of salvation. The religious history of the world, in the Christian view, develops in three stages: the economy of preparation, leading to Christ; the center of time, when the Son becomes man and redeems humanity; the sacramentary economy, perpetuating Christ\u27s salvation in the Church. The historical preparation of Christ can be traced back to three biblical figures, Adam, Abraham, David, as the Gospel genealogies indicate. By presenting the Law as «custodian» until the advent of Christ, Paul showed both its function and its provisional character. Th...