The opus offers a lexicography of and and an analysis of their function in Book III of the Psalter (Pss 73–89) and in Ps 78. The Psalter is analysed on a perspective; the Ps 78 is considered mainly from an intertextual point of view. For its readers the Psalter turns out to be a book and .

This study resolves the problem of the thematic coherence of Psalm 119, arguing the Psalm is structurally arranged to show the Psalmist’s own experience of straying and returning to YHWH’s Torah. This has implications for the organisation of the Fifth Book of the Psalter and for the place of Psalms such as 111 and 147, which also reflect on Torah.