Note 2 — Chapter XIII · METRICAL PSALMODY
Reading edition
“Of course, psalms in the ballad form were easily learned and kept in memory. And in the days when the ability to read was less general than now, these rhymes, scattered so freely broadcast, took root in many a mind and contributed powerfully to the righteousness and stability of the nation.” (J. Balcom Reeves, in The Hymn in History and Literature.)