Catechism of the Catholic Church §2462 — excerpt
Giving alms to the poor is a witness to fraternal charity: it is also a work of justice pleasing to God.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.