Luther’s confidence that God supplies daily bread was nourished by his father-confessor:

I remember that Staupitz told me a story about a prior in a certain monastery who continually complained that the income of the monastery was too slender for him to be able to procure the food and necessities for the monks from this source. Finally Staupitz demanded from him a statement of the income and the expenditures. Here he saw that the property of the monastery had been notably increased every year. Therefore after summoning him to his presence he removed him from office, saying: “You are not a man of faith. Consequently, it is impossible for you to further the interests of the monastery.”

-AE 5