Of “the book of the wars of the Lord” nothing is known except what may be gathered from the passage before us. It was apparently a collection of sacred odes commemorative of that triumphant progress of God’s people which this chapter records. From it is taken the ensuing fragment of ancient poetry relating to the passage of the Arnon River, and probably also the Song of the Well, and the Ode on the Conquest of the Kingdom of Sihon Numbers 21:17-18, Numbers 21:27-30.
What he did ... - The words which follow to the end of the next verse are a reference rather than a quotation. Contemporaries who had “the Book” at hand, could supply the context. We can only conjecture the sense of the words; which in the original are grammatically incomplete. The marg. is adopted by many, and suggests a better sense: supplying some such verb as “conquered,” the words would run “He” (i. e. the Lord) “conquered Vaheb in Suphah, and the brooks, etc.” Suphah would thus be the name of a district remarkable for its reeds and water-flags in which Vaheb was situated.