Arise, O LORD. Deliver me...
from men of the world whose portion is in this life.
You fill their belly with treasure;
they are satisfied with children,
And they leave their abundance to their infants.
As for me, I shall behold your face in righteousness;
when I awake, I shall be satisfied with your likeness.
David considers secular man (“men of the world”) whose portion is “in this life.” They have all they want. They are "satisfied." Here again is the old question: Why do the ungodly prosper in this life?
Well... that's exactly the point: Their portion is “in this life.” and when they die they leave it all to their heirs. (As Chuck Swindoll points out, you never see a U-Haul behind a hearse.)
"As for me," David says, "I shall behold your face in righteousness—a man fully formed ('like him!'). When I awake (from death) I shall be satisfied with your likeness."
The men of this world accumulate this world’s goods but they will leave them behind. As for me, I have God’s love and I will have it forever!
Oh God of love; an unfathomed sea;
Who would not give himself to Thee? —John Wesley