"They need not go away; you give them something to eat."
There will be times when it seems God is asking you to do the impossible... but don't let that worry you. He is planning on being there to help you... most likely, He is already planning to do all the work and just wants you there to witness His love. (this becomes easier when we step aside and let God's will be done.)
Sure there are times when we have to do something... get a job, pay some bills, take the food to the mission... but there are also times when it's out of our control, almost impossible. That is the time you bless what you have before you and let God take care of the rest.
At that time, Jesus saw a great throng; and he had compassion on them, and healed their sick. When it was evening, the disciples came to him and said, "This is a lonely place, and the day is now over; send the crowds away to go into the villages and buy food for themselves." Jesus said, "They need not go away; you give them something to eat." They said to him, "We have only five loaves here and two fish." And he said, "Bring them here to me." Then he ordered the crowds to sit down on the grass; and taking the five loaves and the two fish he looked up to heaven, and blessed, and broke and gave the loaves to the crowds. And they all ate and were satisfied. And they took up twelve baskets full of the broken pieces left over. And those who ate were about five thousand men, besides women and children. Then he made the disciples get into the boat and go before him to the other side, while he dismissed the crowds. Matthew 14:14-22