Compared to Switzerland, Jerusalem’s mountains are quite small. In fact, some would contend that they are merely hills. Nevertheless, we still say, we go UP to Jerusalem! Regardless of the geography or topography Jerusalem is the highest and most protected place on earth.
Psalm 125:1-2: Those who trust in the Lord are like Mount Zion, which cannot be shaken but endures forever. As the mountains surround Jerusalem, so the Lord surrounds his people both now and forevermore.