When Israel went out of Egypt,
The house of Jacob from a people of strange language,
Judah became His sanctuary,
And Israel His dominion. Psa 114:1-2
Webster’s defines sanctuary as the ancient Hebrew temple at Jerusalem or its holy of holies, and also a place of refuge and protection. Why was the holy of holies a sanctuary? It was the place of the presence of YHVH. It was in that place and no other place on earth or in no other temple on earth, that His presence dwelt. If we think back to Psalm 91, we remember that the presence of the LORD is a place of refuge and safety.
When we become the sanctuary (tabernacle, sanctified or set apart place) of the LORD’s presence, and the place where His dominion goes forth — beginning with bowing our own knees to His dominion over our own lives — then He likewise becomes our sanctuary (place of refuge and safety)!