A detailed discussion of the poetic techniques in each psalm is found in Amos Hakham, Sefer Tehillim (The Book of Psalms), 2 vols. (Jerusalem: Mossad Harav Kook, 1984). For the metrical structure of biblical acrostics, see David Noel Freedman, “Acrostics and Metrics in Hebrew Poetry,” in Pottery, Poetry, and Prophecy: Studies in Early Hebrew Poetry (Winona Lake, IN: Eisenbrauns, 1980), pp. 51–76, and “Acrostic Poems in the Hebrew Bible: Alphabetic and Otherwise,” Catholic Biblical Quarterly 48 (1986), pp. 408–431.