What does it mean for a brother's 'hand to waver' or 'fail'? This isn't just about having less money; it's about losing the very ability to provide for oneself.
The verse uses vivid imagery to describe destitution. When it says a brother's 'hand wavereth' or 'hath decayed,' it speaks to a profound loss of capacity. This isn't a simple shortfall of resources, but a state where one's strength, skill, and ability to work and earn have faltered. It implies a loss of self-sufficiency, a state of being unable to grasp or maintain one's livelihood.
Imagine someone who has always been able to provide, but now, due to illness, misfortune, or economic downturn, their strength is gone, their skills are obsolete, or opportunities have vanished. They can no longer 'work with their hands' to secure food or shelter. This calls for more than just charity; it requires direct intervention to 'strengthen' and 'uphold' them, enabling them to live, not just survive.