For my soul is filled with troubles. These words contain the excuse which the prophet pleads for the excess of his grief. They imply that his continued crying did not proceed from softness or effeminacy of spirit, but that from a due consideration of his condition, it would be found that the immense accumulation of miseries with which he was oppressed was such as might justly extort from him these lamentations. Nor does he speak of one kind of calamity only; but of calamities so heaped one upon another that his heart was filled with sorrow, till it could contain no more. He next particularly affirms that his life was not far from the grave. This idea he pursues and expresses in terms more significant in the following verse, where he complains that he was, as it were, dead. Although he breathed still among the living, yet the many deaths with which he was threatened on all sides were to him so many graves by which he expected to be swallowed up in a moment. And he seems to use the word gvr, geber, which is derived from gvr, gabar, he prevailed, or was strong, [1] in preference to the word which simply signifies man, -- the more emphatically to show that his distresses were so great and crushing as to have been sufficient to bring down the strongest man.

Footnotes

1 - See [19]volume 2, page 320, note 2. Some consider the words mchlt lnvt, Machalath Leannoth, which Calvin renders "Machalath, to make humble," as together denoting an instrument of music. "For my part," says Dr Morison, "I lean to the idea that these words are intended to denote some musical instrument of the plaintive order; and in this opinion Kimchi and other Jewish writers perfectly agree. They assert that it was a wind-instrument, answering very much to the flute, and employed mainly in giving utterance to sentiments of grief, upon occasions of great sorrow and lamentation."

For my soul is full of troubles - I am full of trouble. The word rendered as "full" means properly to satiate as with food; that is, when as much had been taken as could be. So he says here, that this trouble was as great as he could bear; he could sustain no more. He had reached the utmost point of endurance; he had no power to bear anymore.
And my life draweth nigh unto the grave - Hebrew, to Sheol. Compare the notes at Isaiah 14:9; notes at Job 10:21-22. It may mean here either the grave, or the abode of the dead. He was about to die. Unless he found relief he must go down to the abodes of the dead. The Hebrew word rendered life is in the plural number, as in Genesis 2:7; Genesis 3:14, Genesis 3:17; Genesis 6:17; Genesis 7:15; et al. Why the plural was used as applicable to life cannot now be known with certainty. It may have been to accord with the fact that man has two kinds of life; the animal life - or life in common with the inferior creation; and intellectual, or higher life - the life of the soul. Compare the notes at 1-Thessalonians 5:23. The meaning here is, that he was about to die; or that his life or lives approached that state when the grave closes over us; the extinction of the mere animal life; and the separation of the soul - the immortal part - from the body.

For my soul is full of troubles,.... Or "satiated or glutted" (e) with them, as a stomach full of meat that can receive no more, to which the allusion is; having been fed with the bread of adversity and the water of affliction, so that he had his fill of trouble: every man is full of trouble, of one kind or another, Job 14:1 especially the saint, who besides his outward troubles has inward ones, arising from indwelling sin, the temptations of Satan, and divine desertions, which was now the case of the psalmist: this may be truly applied to Christ, who himself said, when in the garden, "my soul is exceeding sorrowful, even unto death", Matthew 26:38, he was a man of sorrows all his days, but especially at that time, and when upon the cross, forsaken by his Father, and sustaining his wrath: "his soul" was then "filled with evil things" (f), as the words may be rendered:
innumerable evils compassed him about, Psalm 40:12, the sins of his people, those evil things, were imputed to him; the iniquity of them all was laid upon him, as was also the evil of punishment for them; and then he found trouble and sorrow enough:
and my life draweth nigh unto the grave: a phrase expressive of a person's being just ready to die, Job 33:22 as the psalmist now thought he was, Psalm 88:5, it is in the plural number "my lives" (g); and so may not only denote the danger he was in of his natural life, but of his spiritual and eternal life, which he might fear, being in darkness and desertion, would be lost, though they could not; yea, that he was near to "hell" itself, for so the word (h) may be rendered; for when the presence of God is withdrawn, and wrath let into the conscience, a person in his own apprehension seems to be in hell as it were, or near it; see Jonah 2:2. This was true of Christ, when he was sorrowful unto death, and was brought to the dust of it, and under divine dereliction, and a sense of the wrath of God, as the surety of his people.
(e) "saturata", Pagninus, Montanus, Musculus, Junius & Tremellius, Piscator, Cocceius; "satiata", Tigurine version. (f) "in malis", Pagninus, Montanus; "malis", Junius & Tremellius, &c. (g) "vitae meae", Montanus, Michaelis. (h) "ad orcum", Cocceius; "inferno", Gejerus; "ad infernum", Michaelis; so Ainsworth.

grave--literally, "hell" (Psalm 16:10), death in wide sense.