My knees are weak through fasting Either through forced fasting for want of food, when he was persecuted, or for want of appetite when he was sick, or through voluntary fasting, which the frequency and long continuance of his sufferings induced him to use. I became also a reproach unto them Instead of that pity, which either religion or humanity should have taught them to exercise toward a person in extreme misery, they loaded me with reproaches and scorns. They shaked their heads By way of contempt and derision. In all this David was a type of Christ, who, in his humiliation, was thus wounded, thus weakened, thus reproached, and at whom they thus shook their heads, saying, Thou that destroyest the temple, and buildest it in three days, save thyself. He was also a type of the church, which is often afflicted, tossed with tempests, and not comforted.
Related Commentaries of Psalms 109:24
Psalms 109:24-25
24 My knees are weak through fasting; and my flesh faileth of fatness.
25 I became also a reproach unto them: when they looked upon me they shaked their heads.