[Sidenote: Evidence of distinct collections of psalms]

In its present form, the Psalter is divided into five books or collections. At the end of each collection there is a concluding doxology (xli., lxxii., lxxxix., cvi). The last psalm (cl.) serves as a concluding doxology, not only to the fifth collection, but also to the Psalter as a whole. Certain psalms are also reproduced in two different collections with only slight variations. For example, xiv. is practically identical with liii., except that in the first Jehovah is always used as the designation of the Deity, and in liii. Elohim or God; again Psalm xl. 13-17 is reproduced in lxx.; lvii. 7-11 and lx. 5-12 are together practically equivalent to cviii. These and kindred facts indicate that the Psalter, like the book of Proverbs, is made up of collections originally distinct. The division into exactly five groups appears to be comparatively late, and to be in imitation of the fivefold division of the Pentateuch.

[Sidenote: The oldest collection]

The genesis of the book of Proverbs is exceedingly helpful in tracing the closely analogous growth of the Psalter. The prevailing form of the superscriptions and the predominant use of the name Jehovah or Elohim also aid in this difficult task. Psalms i. and ii. are introductory to the entire book. Psalms iii-xli. all bear the Davidic superscription and use the designation Jehovah two hundred and seventy-two times, but Elohim only fifteen. The form and contents of these psalms, as well as their position, suggest that they are the oldest collection in the book. In the Greek version all the psalms of the collection found in li-lxxii., excepting Psalm lxvi., which is anonymous, and lxxii., which is attributed to Solomon, have also the Davidic superscription. Although certain subsequent psalms are ascribed to David, as, for example, lxxxvi., ci., and ciii., the close of the collection, is the significant epilogue (lxxii. 20), the prayers of David the son of Jesse are ended.

[Sidenote: Meaning and value of the superscriptions ]

Before the approximate date of these collections can be determined the significance of the Davidic title needs interpretation. In the Hebrew version, this title is borne by seventy-three psalms. Two are ascribed to Solomon (lxxii. and cxxvii.), one to Moses (xc.), and twenty-four to the members of the post-exilic guilds of temple singers. The superscriptions of the Greek and Syrian versions contain many variations from those in the Hebrew. This is probably due to the fact that superscriptions are usually added by later scribes in whose minds the question of authorship first became prominent. In earlier Hebrew the phrase commonly translated Psalm of David would more naturally mean a psalm for David or dedicated or attributed to David. The latter appears to have been its original significance. Like the title, Proverbs of Solomon, it was used to distinguish an ancient poem, which, being a psalm, was naturally ascribed to David, and to him later Judaism, in common with the New Testament writers, attributed all psalm literature. A detailed study of the superscriptions soon demonstrates that the majority of them represent only the conjectures of scribes who were guided by current traditions or suggestions embodied in the psalms themselves. In this manner, to Solomon, the builder of the temple, is ascribed Psalm cxxvii., because it refers to the building of the house in its opening verse. The Greek version even attributes to David Psalm xcvi., which, it states, was written when the temple was being built after the captivity.

[Sidenote: David's relation to the psalter]

Since the superscriptions to the Psalter were only very late additions, the question still remains, What was the basis of the late Jewish tradition that makes David the father of the psalm literature, as was Solomon of the wisdom, Moses of the legal, and Enoch of the apocalyptical? The other Old Testament books give no direct answer. They tell us, however, that the warrior king was skilled in playing the lyre, and we are aware that to this, in antiquity, an improvised accompaniment was usually sung. We also have the account of David's touching elegies over the death of Saul and Jonathan and of Abner (II Sam. i., iii. 33, 34). Moreover, the early historical books vividly portray the faults of David, the limitations which he shared in common with his contemporaries, and his deeply religious spirit; but they leave the question of his relation to the Psalter to be settled by the testimony of the individual psalms. Here the evidence is not conclusive. It is clear that many of the psalms attributed by tradition to him were written in the clearer light of later prophetic teaching and amid very different circumstances from those which surrounded Israel's early king. Still it would be dogmatic to assert that nothing from his lips is to be found in the Psalter; and to point out with assurance those passages and psalms which must be Davidic is quite as unwarrantable.

[Sidenote: Evidence of pre-exilic elements in the Psalter]

The Psalter is clearly the repository of that which was best in the earlier spiritual life and thought of the race. While there are no direct references to songs in connection with the pre-exilic Jewish temple, Amos (v. 23) found them in use at the sanctuary at Bethel; and from Psalm cxxxvii. 3, 4 it would appear that the exiles in Babylonia were acquainted with certain songs of Zion or songs of Jehovah. Treasured in the hearts of the people, and attributed, perhaps even by the time of the exile, as a whole to David, they constituted the basis of the earliest collections of psalms, which, as we have noted, practically without exception bear the Davidic superscription. The date of each individual psalm, however, must be determined independently on the basis of its own testimony, although the historical allusions are few and the data in many cases are far from decisive.