So just a quick question: does that mean that man can only know propositionally, since ET is the "copy" (I assume) and the copy is propositional? If so, what exactly does that mean? If not, what other ways does man know besides propositionally? For example, can he know immediately?
I believe there is a personal element to all of knowledge, so that it is not ever to be restricted to propositions. Hence revelation always addresses us as standing in some relation to God, whether as sinner or as son. The relationship is personal and so it adds emotional and moral obligations to the propositional content. Consider the way this is conveyed in Eph. 5:1, and Col 3:12 as examples. However, the reformed have denied the mystical idea of knowing God immediately. In heaven faith is turned to sight so the mode of communication is one of vision rather than absorption.