lPsalms is a collection of ancient songs or hymns and probably covers the entire Old Testament time period. There are numerous authors identified, the most famous of whom are Moses and David, but it is clearly a compilation that collects the worship literature of Israel into a single volume. Scholars suggest that it existed in the oral tradition until the post-exilic period and was recorded by priestly scribes at that time.
The Old Testament:
The WRITINGS
1400 B.C. (Moses) to 420 B.C. (Malachi)