'Holy Mountain' in the Bible

For on My holy mountain, on the high mountain of Israel,” declares the Lord God, “there the whole house of Israel, all of them, will serve Me in the land; there I will accept them and there I will seek your contributions and the choicest of your gifts, with all your holy things.

“You were the anointed cherub who covers,And I placed you there.You were on the holy mountain of God;You walked in the midst of the stones of fire.