religious writing vs Psalm

religious writing and Psalm both are nouns.

Word	Noun	Adjective	Verb	Adverb
religious writing	Yes	No	No	No
Psalm	Yes	No	No	No

religious writing (noun)	Psalm (noun)
writing that is venerated for the worship of a deity	one of the 150 lyrical poems and prayers that comprise the Book of Psalms in the Old Testament; said to have been written by David