'Mount' in the Bible

When they were getting near Jerusalem and had arrived at Bethphage and Bethany, on the Mount of Olives, Jesus sent two of his disciples on in front, with these instructions.

He was sitting on the Mount of Olives opposite to the Temple, when Peter, James, John, and Andrew, apart from the others asked Him,

After singing a hymn, they went out to the Mount of Olives.