Nothing is gained by denying that biblical poetry is a subject of controversy. Everything is to be lost if we capitulate to the detractors. Their unwillingness to master the poetry of the Bible is an expression of laziness. God is not honored, and people are not edified, by lazy Bible readers.
All of the following items have been authored by Leland Ryken. A comprehensive coverage of biblical poetry can be found in Sweeter Than Honey, Richer Than Gold: A Guided Story of Biblical Poetry (Weaver Books, 2015; now published by Lexham Press). There are also relevant chapters in How to Read the Bible as Literature (Zondervan, 1984) and Words of Delight: A Literary Introduction to the Bible (Baker, 1987).