Ex. 20:18 they all heard him.

Ex. 20:18- They were afraid to be the hearers, but knew Moses would hear for them.

v.20  look how the Jew speaks here.  fear before your faces.  We English folk don't speak like that.  In that statement , which we don't have time right now is very deep in understanding other things.
v.22  God speaks and tells them they have heard from heaven before.

v.23    2   things here to pervert the bible in our time.  This is a very important time in Israel history.  Even the giving of the law.   God reveals  not to have other gods.  and  no tools placed on the stones which make the alter.   This you see is shortly after the exodus, where they worship the Egyptian mysteries and gods of Osirus and Isis, and  Horus.   Also Ra.  many in fact.  Now the Israel nation will once again separate from Pagans  to be a holy nation.
the asher stone represents innitiates who start as free masons.  As they are in the masons they become smooth stones.  Being they are a society who believe in works, to get to the celestial heaven lodge, that would be equal to tools in men's hands to create themselves worthy to be in  a heaven which is ruled by Horus.  That is the opposite of  God's voice to Moses.  To have no gods, and to use no tools on the stones
to pollute it.  Our merits with God as Christians is the blood and work of Christ on the cross.

Heb. 12:18  the same account is mentioned.
v.22  now it is Mt. Sion.  This would be the heavenly Jerusalem.
v.25  they refused him who spoke on earth, call now is to listen to him who is from heaven.
v.28 now let us have grace. we have received a kingdom that cannot be moved.  We have seen the earth shaken lately through storms.