There is not one of God's children who cannot afford to give something to His Work! You may think you can't afford to give, or you may not be able to give a lot at first, but God blesses everybody that gives, and if you're not rich, that's all the more reason you ought to give so the Lord can bless you and help you to have more!
The Lord's finances work the opposite from the World's! The World says, "Well now, when I see it, and when I've got my million, then I'll start giving!" But the Lord says, "You start giving now what you've got, and then I'll give you even more!" Man says, "Me first! Self-preservation is the first law of nature!" But the Lord says, "God first, and I'll take care of you afterwards!" (Mat.6:33)
God's way to plenty is to give sacrificially of what you now have. "He that withholdeth, it tendeth to poverty, but he that scattereth abroad, it increaseth!" (Pro.11:24)--And the faster you give it away and share it, the more He'll heap it on and the richer you'll become so you can share more!
Covetousness hoards itself poor, but charity gives itself rich!