Song of Ascents is a title given to fifteen of the Psalms, 120–134, each starting with the superscription "Shir Hama'aloth", or, in the case of Psalm 121, Shir Lama'aloth. They are also variously called Gradual Psalms, Fifteen Psalms, Songs of Degrees, Songs of Steps, songs for going up to worship or Pilgrim Songs.

Psalm 124 is the 124th psalm of the Book of Psalms, beginning in the English of the King James Version: "If it had not been the LORD who was on our side, now may Israel say". The Book of Psalms is part of the third section of the Hebrew Bible, and a book of the Christian Old Testament. In Latin it is known as "Nisi quia Dominus". It is one of fifteen psalms that begin with the words "A song of ascents". Using "conventional metaphors", it recalls the dangers faced by Israel from which the nation has been rescued.