In my reading of the Reformers and the Puritans I am yet to find them explain that in the NT we find a New Israel being formed in Christ and a New Exodus etc, or that Israel recapitulated the sin of Adam etc, and that baptism casts us back to the Exodus and the Waters in Genesis 1 etc as "Biblical theologians" do today. Is this a fault of the Puritans or is there a new hermeneutic in use today which is a little novel?