also appears in the Hebrew Bible, is "reduced to an aquatic pet with whom YHWH can play". Poetic characteristics The biblical poetry of Psalms uses parallelism as its primary poetic device. Parallelism is a kind of symmetry, in which an idea is developed by the use of restatement, synonym, amplification, grammatical repetition, or opposition. Synonymous parallelism involves two lines expressing essentially the same idea. An example of synonymous parallelism: "The is my light and my salvation; whom shall I fear? The is the stronghold of my life; of whom shall I be afraid?" (Psalm 27:1). Two lines expressing opposites is known as antithetic parallelism. An example of antithetic parallelism: "And he led them in a cloud by day/ and all the night by a fiery light" (Psalm 78:14). Two clauses expressing the idea of amplifying the first claim is known as expansive parallelism. An example of expansive parallelism: "My mouth is filled with your praise/ all the day with your lauding" (Psalm 71:8). Editorial agenda Many scholars believe the individual Psalms were redacted into a single collection during the Second Temple period. It had long been recognized that the collection bore the imprint of an underlying message or metanarrative, but that this message remained concealed, as Augustine of Hippo said, "The sequence of the Psalms seems to me to contain the secret of a mighty mystery, but its meaning has not been revealed to me." (Enarr. on Ps. 150.1) Others pointed out the presence of concatenation, that is, adjacent Psalms sharing similar words and themes. In time, this approach developed into recognizing overarching themes shared by whole groups of psalms. In 1985, Gerald H. Wilson's The Editing of the Hebrew Psalter proposed – by parallel with other ancient eastern hymn collections – that psalms at the beginning and end (or "seams") of the five books of Psalms have thematic significance, corresponding in particular with the placement of the royal psalms. He pointed out that there was a progression of ideas, from adversity, through the crux of the collection in the apparent failure of the covenant in Psalm 89, leading to a concert of praise at the end. He concluded that the collection was redacted to be a retrospective of the failure of the Davidic covenant, exhorting Israel to trust in God alone in a non-messianic future. Walter Brueggemann suggested that the underlying editorial purpose was oriented rather towards wisdom or