בִּ֭רְכַּי כָּשְׁל֣וּ מִצּ֑וֹם וּ֝בְשָׂרִ֗י כָּחַ֥שׁ מִשָּֽׁמֶן׃
My knees totter through fasting; And my flesh is lean, and hath no fatness.
Read halakhic rulings (Jewish law) on Psalms 109:24 from the Mishneh Torah and classical halakhic sources, free online.