'Holy City' in the Bible

For they call themselves {after the holy city}, and they lean on the God of Israel-- Yahweh of hosts [is] his name.

Awake! Awake; put on your strength, Zion! Put on the garments of your beauty, Jerusalem, {holy city}! For [the] uncircumcised and [the] unclean shall not {continue to} enter you any longer.