כָּל־הַיָּדַ֖יִם תִּרְפֶּ֑ינָה וְכָל־בִּרְכַּ֖יִם תֵּלַ֥כְנָה מָּֽיִם׃
人人的手都必發軟，人人的膝蓋都必軟弱如水。
Rashi
Let them be rejected by themselves, that they will be rejected in their own eyes from worry, and as [if] in water let them walk. Similar to this is (Ezek. 7:17): “and all knees will go [as in] water,” from tears.