This explanation, adopted by Calvin, is derived originally from Aquila and Symmachus, who rendered the phrase, ἐπι ἀγοηματων,—respecting oversights or errors: and they have been followed by Jerome, Vulgate, etc. The prior version of the Septuagint is, μετ ᾿ ὠδδης,—with an ode that this prayer is composed in metre, is evident from the word, “Selah,” and from the conclusion of the chapter. The most probable meaning of the word is what Drusius has suggested, and adopted by Grotius, Marckius, and Henderson, and that is, that it refers to a peculiar metre, a kind of composition, which from its irregularity is called erratica cantio, an erratic verse. “The prayer of Habakkuk,” says Drusius, “was to be sung according to the odes which they called Sigionoth.” To the same purpose is what Grotius says, that is, it is “a song according to the notes of an ancient ode which began with this word.” It is derived from [שגה], to go astray, to wander, that is, in this instance, from the regular metre of an ode. It is an erratic ode, that is, one containing varieties. It may be thus paraphrastically expressed, “According to the notes of the irregular ode;” or, as it is in the margin of our Bibles, “According to variable songs or tunes.”—Ed.