Verses with the word knees in the Apocrypha (2 verses):

1 Esdras 8:73
Then rising up from the fast with my clothes and the holy garment rent, and bowing my knees, and stretching forth my hands unto the Lord,

Sirach 25:23
A wicked woman abateth the courage, maketh an heavy countenance and a wounded heart: a woman that will not comfort her husband in distress maketh weak hands and feeble knees.