Definition of "psalmist"

An environment which would have made a contented woman a poet, a suffering woman a devotee, a pious woman a psalmist, even a giddy woman thoughtful, made a rebellious woman saturnine.

1878 January–December, Thomas Hardy, chapter 7, in The Return of the Native […], volume I, London: Smith, Elder, & Co., […], published 1878, book I (The Three Women), page 157

The hunter is taken in his own snare, as the great Psalmist says.

1897, Bram Stoker, chapter 25, in Dracula, New York, N.Y.: Modern Library

Either man is the creature whom the Psalmist described as "a little lower than the angels," crowned with glory and honor, holding "dominion over the works" of his Creator; or man is a soulless, animated machine to be enslaved, used and consumed by the state for its own glorification.

1955 — Dwight D. Eisenhower, Third State of the Union Address