'Holy Mountain' in the Bible

For in my holy mountain, in the mountain of the height of Israel, says the Lord Yahweh, there shall all the house of Israel, all of them, serve me in the land: there will I accept them, and there will I require your offerings, and the first fruits of your offerings, with all your holy things.

You were the anointed cherub who covers: and I set you, [so that] you were on the holy mountain of God; you have walked up and down in the midst of the stones of fire.