The size of a challenge should never be measured by what we have to offer. It will never be enough. Furthermore, provision is God's responsibility, not ours. We are merely called to commit what we have - even if it's no more than a sack lunch.
The matters we or the world might consider trivial, He cares about and wants to remedy. He longs to relieve our worries and has promised to supply our most fundamental needs.
The cautious faith that never saws off a limb on which it is sitting, never learns that unattached limbs may find strange unaccountable ways of not falling.
I still find my corrupt heart longing for tomorrow's bread. I can make a good argument to the Lord about how effective I can be if He would supply me with enough advance funds. It's a little frightening to pray for TODAY's bread. That means I must pray again for tomorrow and believe again for tomorrow. My greedy heart is willing to be corrupted by a little bit of riches so that I see my warehouse full of loaves. I can make a good argument about how God wonβt have to be bothered with me every day if He would only advance me about ten years worth of bread.