It is interesting that they chose Mt. Sinai for the illustration. Consider Galatians 421 Tell me, you who want to be under law, do you not listen to the law? 22 For it is written that Abraham had two sons, one by the bondwoman and one by the free woman. 23 But the son by the bondwoman was born according to the flesh, and the son by the free woman through the promise. 24 This is allegorically speaking, for these women are two covenants: one proceeding from Mount Sinai bearing children who are to be slaves; she is Hagar. 25 Now this Hagar is Mount Sinai in Arabia and corresponds to the present Jerusalem, for she is in slavery with her children. 26 But the Jerusalem above is free; she is our mother.Jesus said, "This cup is the new covenant in My blood (I Corinthians 11:25). There is no mention of a second covenant beyond that. How can God's kingdom be divided? Jesus warned about this in Matthew 12:25.Paul also said, There is one body and one Spirit, just as also you were called in one hope of your calling; one Lord, one faith, one baptism, one God and Father of all who is over all and through all and in all (Ephesians 4:4-6).I'm not sure what your interest in this organization is. Is this an intellectual curiosity or do you want to join their ranks? I would suggest you put their literature to the side (if not in the trash) and focus your attention on the Bible. There is an old adage that applies to theology, "If it's new, it probably isn't true and if it's true, it probably isn't new". Based on your posting and reading the FAQs on their web page, they seem to be a legalistic organization focusing on the outward obedience to their favorite rules. I would exhort you to flee from all wickedness!