Charles Ellicott Commentary Psalms 102:4

"My heart is smitten like grass, and withered; For I forget to eat my bread." — Psalms 102:4 (ASV)

Smitten. —As by the sun. Exactly as in Hosea 9:16.

So that I forget. —Better, for I have forgotten, etc. For this mark of deep sorrow, compare 1 Samuel 1:7; 1 Samuel 20:34, etc. (Compare Homer, Iliad, xxiv. 129.)