Hebrews 12:12

So tighten the grip of your slipping hands; stiffen the stand of your knocking knees;

Matthew 4:2

After fasting forty days and forty nights, He at last felt hungry.

2 Corinthians 11:27

through toil and hardship, through many a sleepless night, through hunger and thirst, through many a fasting season, poorly clad and exposed to cold.

Treasury of Scripture Knowledge

Summary

My knees are weak through fasting; and my flesh faileth of fatness.

Bible References

Knees

Matthew 4:2
After fasting forty days and forty nights, He at last felt hungry.
2 Corinthians 11:27
through toil and hardship, through many a sleepless night, through hunger and thirst, through many a fasting season, poorly clad and exposed to cold.
Hebrews 12:12
So tighten the grip of your slipping hands; stiffen the stand of your knocking knees;