Ellicott's Commentary On The Whole Bible
Psalms 71 - Introduction
LXXI.
The Palestinian collectors of the sacred songs of Israel found no traditional inscription to this psalm, and left it without conjecture of its authorship. In Alexandria it appears to have been attributed to David, but with the addition that it had some peculiar connection with the son of Jonadab and the first exiles. This connection, together with the resemblance between this psalm and Jeremiah’s writings, has led many critics to ascribe it to that prophet, a conjecture also borne out by the fact that it is, in great part, an adaptation of other psalms, chiefly 22, 31, 35, and 40, since such dependence on older writings is a prominent feature in Jeremiah. His life of danger and adventure, his early consecration to his office, the high position which he took at one time in the councils of the nation, all agree with what the author of this psalm says of himself. (Comp. Psalms 71:6, with Jeremiah 1:5, and see Note, Psalms 71:21.) Still it is quite as likely that we have here another of those hymns composed, or, more properly speaking, in this case, arranged, to express not individual feeling and experience, but that of suffering Israel. (See Note, Psalms 71:6; Psalms 71:20.) In a cento of passages from older compositions the rhythm is necessarily irregular.