The vantage point of the mountains in proximity to Jerusalem serve as a stage for the proclamations (Mt. Sinai, Mt. Carmel) and purposes of God (Mt. Moriah, Calvary) throughout covenant history. We can easily imagine our author inspired to write this song on his way to worship in Jerusalem. Perhaps traveling there at great cost. He traverses hill and valley until finally his elevated position on the outskirts of the region affords him his first view of the holy city itself. The temple stands upon a hill surrounded by seven other peaks, one of which affords him his view of the city in the distance. Historians have noted how this surrounding mountain range shielded Jerusalem from stormy winds as well as attacks from enemies. The secure position of mountains like this therefore serves as a metaphor of the promises of Gods for those established in covenant with him. Like the nature of God, mountains can be a terrifying presence, or a place of highest security depending one's situation. Ps 125 stands as a confrontation to some and a great encouragement to others. Is your hope in Zion?