Roman Catechism 30.46

Chapter 30 — Part III: The Decalogue — The Seventh Commandment

Section 46. The Reward Of Observing This Commandment — That Christians may accustom themselves to those acts of generosity and kindness towards the poor and the needy which are inculcated by the second part of this Commandment, the pastor should place before them those ample rewards which God promises in this life and in the next to the beneficent and the bountiful.