MOUNT ZION = TORAH WRITTEN UPON A HEART OF FLESH SPIRIT OF THE LAW = CIRCUMCISED HEARTS

Galatians 4:24 Which things are an allegory: for these are the two covenants; the one from the mount Sinai [Torah written upon a heart of stone / uncircumcised] which genders to bondage which is Agar.

Galatians 4:25 For this Agar is mount Sinai in Arabia and answers to Jerusalem which now is …

Galatians 4:26 But Jerusalem [Zion: Torah written upon a heart of flesh / circumcised] which is above is free which is the mother of us all.