When we recollect how the sorrows of Jesus wasted his strength, so that the Jews spake of him as supposing him near fifty years of age, when he was but little more than thirty, we may discover very clear references in these words to the person of Christ; John 8:57. These things could never be said of David; for, though persecuted by Saul, yet we find his health and confidence kept him above such wastings. And when Jesus bore our iniquity, which, as our Representative, is said in scripture to be laid on him, and thereby considered as his own, being made sin, and a curse, well do these words apply. Isaiah 53:6; 2 Corinthians 5:21; Galatians 3:13.
Related Commentaries of Psalms 31:9
Psalms 31:9-10
9 Have mercy upon me, O LORD, for I am in trouble: mine eye is consumed with grief, yea, my soul and my belly.
10 For my life is spent with grief, and my years with sighing: my strength faileth because of mine iniquity, and my bones are consumed.