Someone who supports Torah will not be lacking the funds he gave, and will benefit tremendously in the world to come, as the Midrash says on the verse, ‘For a mitzva is like] a candle and Torah is light’, that sometimes a person wants to do a mitzva and the evil inclination says to him, ‘Why should you spend money on doing a mitzva for others, better to give it to your children’. The good inclination responds that it is better to give for a mitzva, for a mitzva is like a candle that does not lack light when other candles are lit from it.
And by supporting Torah a person merits having good and holy children, as it says in the holy Zohar, ‘The Torah ] is a tree of life to those who cleave to it, and its supporters are gratified, who are the Torah’s ‘supporters’ – those who give Torah learners merchandise to sell and live off.