3 And what are your days, since you have said, “In my days I have called upon Him”? Are they those perchance, in which “the fullness of time came,” and “God sent His Son,” who had already said, “In an acceptable time have I heard you, and in a day of salvation have I helped you”?...I may rather call my days the days of my misery, the days of my mortality, the days according to Adam, full of toil and sweat, the days according to the ancient corruption. “For I lying, stuck fast in the deep mire,” in another Psalm also have cried out, “Behold, You have made my days old;” in these days of mine have I called upon You.
For my days are different from the days of my Lord. I call those my days, which by my own daring I have made for myself, whereby I have forsaken Him: and, since He reigns everywhere, and is all-powerful, and holds all things, I have deserved prison; that is, I have received the darkness of ignorance, and the bonds of mortality....For in these days of mine, “The snares of death compassed me round about, and the pains of hell gat hold upon me”: pains that would not have overtaken me, had I not wandered from You. But now they have overtaken me; but I found them not, while I was rejoicing in the prosperity of the world, in which the snares of hell deceive the more.
Source: The Enarrations, or Expositions, on the Psalms (New Advent)