[Sidenote: Approximate date of the earliest collections]
Just when the earliest collections, found in iii.-xli. and li.-lxxii., were made is a comparatively unimportant yet difficult question to decide. Probably the rebuilding of the temple in 516 B.C. was one of the great incentives. The example of the Babylonians, who possessed a large and rich psalm literature, may also have exerted an indirect influence. At least it is certain that the guilds of temple singers and the song service became increasingly prominent in the religious life of the Jewish community which grew up about the restored temple. The presence of alphabetical psalms, as, for example, ix., x., xxv., xxxiv., xxxvii., in the earliest collection suggests also the leisure of the exile. The historical background of many of these psalms is clearly the exile and the long period of distress that followed. They voice the experiences of the poor, struggling band of the pious, who, living in the midst of oppressors, found in Jehovah alone their refuge and their joy. Some of these psalms also reflect the prophetic teachings of Jeremiah (e.g., xvi., xxxix) and of Isaiah xl.-lxvi. In general their attitude toward sacrifice is that of the prophets:
For thou desirest not sacrifice;
Else would I give it.
Thou delightest not in burnt offering.
The sacrifices of God are a broken spirit;
A broken and a contrite heart, O God, thou wilt not despise.
Religion is defined in the terms of life and acts. Ceremonialism has not yet cast its chilling influence over the heart of the nation. Therefore the earliest collections may, with considerable assurance, be assigned to a date not later than the days of Nehemiah (about 400 B.C.).
[Sidenote: Later collections]
Psalms xlii.-l. and lxxiii-lxxxiii. constitute a collection of Levitical hymns. If we may follow the indications of their superscriptions, they consist of two originally distinct groups, the one, xlii.-xlix., associated with and possibly at first collected and preserved by the post-exilic guild of temple singers, known as the sons of Korah, and the other, l., lxxiii.-lxxxiii., similarly attributed to Asaph, the guild of temple singers, mentioned first in the writings of the Greek period. In these two groups the priests and Levites and the liturgy are prominent. Psalms lxxxiv.-lxxxix. constitute a short Levitical supplement. The remainder of the Psalter is also made up of originally smaller collections, as, for example, the Psalms of Ascent or the Pilgrim Psalms (cxx.-cxxxiv.), and the Hallelujah Psalms (cxi.-cxiii. and cxlvi.-cl.). Some of the latter come perhaps from the Jews of the dispersion. Each collection appears to represent a fresh gleaning of the same or slightly different fields, incorporating ancient with contemporary psalms, and, as has been noted, not infrequently including some already found in earlier collections.
[Sidenote: Completion of the Psalter]
Certain of the psalms, such as lxxiv., lxxix., lxxxiii., seem clearly to reflect the horrors of the Maccabean struggle (169-165 B.C.). Later Jewish literature bears testimony that in the last two centuries before Christ psalm writing increased rather than decreased (cf. e.g., Psalms of Solomon). Certainly the experiences through which the Jews passed during the middle of the second century were of a nature to evoke psalms similar to those in the Psalter. The probabilities, therefore, are that the Psalter, in its final form, is, like the book of Daniel, one of the latest writings in the Old Testament. It was possibly during the prosperous reign of Simon, when the temple service was enriched and established on a new basis, that its canon was finally closed.
[Sidenote: The book of Lamentations]
The fact that they all gather about a definite event in Israel's history, and probably antedate the majority of the psalms in the Psalter, explains why the little collection of lyrical poems, known as the book of Lamentations, never found a place beside the kindred psalms (e.g., Pss. xlii., xliii) in the larger book. Their theme is the Babylonian exile and the horrors and distress that it brought to the scattered members of the Jewish race. Their aim is prophetic, that is, to point out and confess the guilt of the nation and its dire consequences. They reflect the teachings of both Jeremiah and Ezekiel. While it is not strange that later tradition attributed the collection to the first of these prophets, its contents do not support the conjecture. Four out of the five poems are alphabetical, and distinctly different points of view are represented. Chapters ii. and iv. probably come from the middle of the Babylonian exile, and to the remainder must be assigned a still later period.