Thijs Booij, «Psalms 120–136: Songs for a Great Festival.», Vol. 91 (2010) 241-255
Psalms 120–134, the 'Songs of Ascents', are a functional unity. In early rabbinical tradition concerning the Great Hallel, they seem to be linked with Psalms 135 and 136; in the texts themselves this connection is quite clear. The Songs, as a collection, and the two psalms of praise apparently stem from the later post-exilic period, when they were used during the festival of Sukkoth. The Songs were recited in processions to the sanctuary; the psalms of praise were part of the liturgy proper.