This is a truly wonderful article tithes and offerings, or as it is more formally called, systematic benevolence.
This is a wonderful article on the God's call for our support of the work of missionaries. Originally titled, "Help For Mission Fields, it also encourages economizing in order to give, clearly states God's promises to replenish the supply so that our giving can continue, etc. This is an article to read and pray over!
(Excerpt from Desire of Ages chapter 39.)
This excerpt from Mrs. White's writings is wonderfully encouraging on God providing.