'Mountain' in the Bible

So they traveled from the mountain of the Lord three days' journey; and the ark of the covenant of the Lord was traveling before them during the three days' journey, to find a resting place for them.

And Moses removed Aaron's garments and put them on his son Eleazar. So Aaron died there on the top of the mountain. And Moses and Eleazar came down from the mountain.

Then the Lord said to Moses, "Go up this mountain of the Abarim range, and see the land I have given to the Israelites.