Theophylact of Ohrid, on Heb 12:12

“Wherefore lift up the hands which hang down, and the feeble knees,”

“He speaks as to fighters and warriors. He took this from the writing of Isaiah (Isa. 35:3), showing through the metaphor of the principal members that all had grown weak in soul. For the hands are a symbol of activity, and the feet of movement. Thus, in one who falls into despondency, first the organs of the soul, and then consequently those of the body as well, grow weak.”

Imported from an open dataset — not yet checked against the printed edition.