JANET, by George C. Stebbins (PHH 63), is thought to have been composed for this psalm and was first published in the 1912 Psalter Written in Stebbins's characteristic gospel-hymn style, JANET is a simple tune with simple harmonization but with a strong rhythmic effect. Sing it in parts and in alternating groups for stanzas 3 through 8, and have everyone sing stanzas 1, 2, and 9. The bulk of this psalm is narration of salvation history–don't rush the narrative! Stanzas 1-2 and 9 frame the narrative with choral calls to praise.
--Psalter Hymnal Handbook