Ellicott's Commentary On The Whole Bible
Psalms 139 - Introduction
CXXXIX.
This psalm falls into four strophes unequal in length, but clearly marked. Had it ended at the third it could have been easily described as a poem on the omniscience and omnipresence of God, and though many of the expressions that have been used about this psalm would seem extravagant if repeated, yet it would be acknowledged by all as one of the sublimest in the whole collection. In its tone it is personal and reflective rather than speculative, and yet some of the profoundest metaphysical questions are touched, or at least suggested, and as we read we feel at every moment that we stand on the verge of the discovery of weighty truths concerning God’s nature and his relation to man. But suddenly, as only a Hebrew poet could do, the writer breaks away from the subject, to denounce ungodly men with a storm of indignation nowhere surpassed. For the explanation of this see Note to Psalms 139:19.
The superscription ascribing the psalm to David must be abandoned in the face not only of the strong Aramaic colouring of the psalm, but also of the development of its eschatology, which marks a late epoch. It is certainly as late as the latest in the collection. Though not sustained, throughout, the parallelism is exceptionably fine.
Title. — See Title, Psalms 4.
The Codex Alex. of the LXX. adds, “of Zechariah,” and a later hand, “on the dispersion.”