Psalms 102:4

“My heart is smitten, and withered like grass, etc.] Like grass in the summer solstice f1405, which being smitten with the heat of the sun, or by some blast of thunder and lightning, is dried up, and withers away; so his heart was smitten with a sense of sin, and of God’s wrath and displeasure at him, and with the heat of affliction and trouble, that it failed him, and he could not look up with joy and comfort: so that I forget to eat my bread; sometimes, through grief and trouble, persons refuse to eat bread, as Jonathan and Ahab, which is a voluntary act, and purposely done; but here, in the psalmist, there was such a loss of appetite, through sorrow, that he forgot his stated meals, having…”

“My heart is smitten - Broken; crushed with grief. We now speak of “a broken heart.” Even death is often caused by such excessive sorrow as to crush and break the heart. And withered like grass - It is dried up as grass is by drought, or as when it is cut down. It loses its support; and having no strength of its own, it dies. So that I forget to eat my bread - I am so absorbed in my trials; they so entirely engross my attention, that I think of nothing else, not even of those things which are necessary to the support of life. Grief has the effect of taking away the appetite, but this does not seem to be the idea here. It is that of such a complete absorption in trouble that everything else is…”

“102:4 Like dried grass, the psalmist senses his life ebbing away.”

“heart: Psa 6:2, Psa 6:3, Psa 42:6, Psa 55:4, Psa 55:5, Psa 69:20, Psa 77:3, Psa 143:3, Psa 143:4; Job 6:4, Job 10:1; Lam 3:13, Lam 3:20; Mat 26:37, Mat 26:38 withered: Psa 102:11, Psa 37:2; Isa 40:7 so that: Psa 102:9; Sa1 1:7, Sa1 1:8; Ezr 10:6; Act 9:9 Psalms 102:5”