EXPOSITION
THIS is another of the alphabetical psalms (see above, Psalms 9:1-20; Psalms 25:1-22; and 34.), and, though more free from irregularities than the previous ones, is not altogether without them. While, generally, each letter heads a stanza consisting of two verses, there are three occasions on which the stanza assigned to a letter is formed of only one verse (see Psalms 37:7, Psalms 37:20, and Psalms 37:34). Further, there are two occasions when the stanza begins with a wrong letter, לtaking the place of, ע and וof . ת These anomalies it has been proposed to get rid of by altering the text; but, to judge by the previous alphabetical psalms, absolute exactness was not at first aimed at in this form of composition.
The psalm is wholly didactic. It begins with exhortation, which is carried on through five stanzas to the end of Psalms 37:9. Exhortation then gives place to calm and unimpassioned instruction, of a character resembling that which makes up the bulk of the Book of Proverbs. This tone continues to the end of verse 33, when there is a return to exhortation, but exhortation (verses 34, 37) mingled with instruction (verses 35, 36, 38-40). The whole poem is grave, quiet, equable, devoid of excitement or lyric fervour. It is unlike David's other compositions, but may be his, as asserted in the title, and may be the only composition which we possess of his belonging to his old age (verse 25).
The object of the poem is to reassure men whose minds are disturbed by the fact of the frequent prosperity of the wicked, to convince them that in every case retribution will overtake the ungodly man at the last, and to impress upon them that the condition of the righteous, even when they suffer, is far preferable to that of the wicked, whatever prosperity they may enjoy.