Why is Genesis the foundation even for what grace-age believers believe?
Genesis is the foundation because it records the beginnings of all things, and that is where the foundation for grace-age believers' beliefs is found. Although grace, salvation, the Body of Christ, and the Rapture are not found in the Old Testament, Genesis still gives the necessary backdrop for understanding what believers believe.
Les explains that Genesis is foundational because everything had its beginnings back there, and that is where the foundation even for what grace-age believers believe is found. He notes that while the Old Testament was not written for our doctrine, and you will not find grace and salvation, the Body of Christ, or the Rapture in it, that does not mean believers should not study the Old Testament. He loves to teach Genesis and could teach it year in and year out because it establishes the beginnings that underlie grace-age belief.