Who led them out of Egypt? Moses, yes, but was not Jesus Christ Himself the one who called Moses out of the burning bush? And was it not Jesus Christ Himself who was the Rock that followed them in the desert? And was it not Jesus Christ Himself who a gave Moses the Law carved in Stone? And is it not to honor and obey Jesus Christ that the Father has called all mankind?
Obeying the First Commandment means we have no precepts, moralities, traditions or beliefs that reduce the Jesus Christ to anything less than one with the Father and the sole Savior and Creator, Lawgiver, and Judge of mankind.
Do not be offended that there is only One Way — be fearful that there is any way to salvation at all.
Those who reject Jesus Christ have a shared destiny with Satan in the lake of fire.
Do not be offended that there is one Salvation — be amazed and fearful that there is any salvation at all. And how shall they be saved who reject so great a salvation?