What does this Robinson schema look like as I have understood it and developed my own version of it? It seems Robinson and Hebert initially developed their ideas independently of one another and only later compared notes. Hebert acknowledges his debt in turn to W. J. Phythian-Adams for this threefold structure.[19] Both Robinson and Hebert went on to develop their ideas of typology based on the threefold structure of revelation.[20] I followed their lead and began with