The interrelationship of the covenants can be portrayed like an hourglass, with the most universal scope occurring at the two ends and the work of Christ at the center. The Adamic/Noahic, Abrahamic, Mosaic, and Davidic covenants are all named in light of the covenant head or mediator through whom God entered into a relationship with his elect. The new covenant is titled in light of its contrast to the “old” Mosaic administration and provides climax to all God’s purposes in history (see Jer. 31:31–34;