
The just person does not repay another merely because the other needs it, but because the other has done something good for us. We wish to make a return. There is a deep and soul-enriching reciprocity about justice, then. We are touching something fundamental in the human make-up here. To repay a good deed done to us with a reciprocal good deed is something we need to do in order to be whole. On the other hand, to be constantly on the receiving end of goodness without ever acknowledging it is a kind of solipsistic existence that is not good for us, and in our heart of hearts we know it. Even babies will spontaneously respond to goodness by smiling back at a loving smile, by embracing the one who embraces them with love. We are made to respond to goodness and love by a goodness and love of our own.
In our life with God, we will always be indebted to him. The sheer size of what we’ve been given by God is truly astronomical: he has given us the universe! He has given us life. He has given us himself in his beloved Son. He continues to sustain us in being by his love. We will always be loved more by him than we can possibly love in return. But that does not excuse us from trying. It is religion that allows us to attempt some expression of our gratitude to God. God does not need gratitude in the same way our employee needs his pay, or in the same way our friend needs to be thanked for his acts of kindness to us. God does not need. Full stop. But we need to express it.

Gratitude, then, is inseparable from religion and is an aspect of justice. Eucharist is a word that literally means thanksgiving. One of the psalms exclaims, ‘Oh how can I repay the Lord for all his goodness to me? The cup of salvation I will raise, and I will call on the Lord’s name’ (psalm 115). Through religion, we raise the cup of salvation, we give ourselves to God, who gives himself to us. This reciprocal giving, on such a deep level, is itself a gift – the greatest of gifts.
St. Thomas Aquinas, who never seems to overlook anything, ever, points out (S.T., II, II, Q. 106:5) that gratitude isn’t always related to the material size of what we have been given. From our human benefactors, also, we have been given many things, large and small, on many levels, by many people. Yet, as St. Thomas comments, we are ‘sometimes under greater obligation to one who has given little, but with a large heart.’ What a beautiful thought. I think of the gift of a sea-shell given by a child with shining eyes. The gift of a smile from an adult with intellectual disabilities. The gift of trust given by a friend. These gifts are what help to make us human, and to make life liveable. As we study here the virtue of justice, we see that it reminds us to notice that the gift with a heavy weight, with a countable quantity, or with a vast size is not the only thing that make a gift valuable, and that obliges us to respond in kind. The intangible quality of the gift is perhaps what is most valuable to us. The gift of the heart, the gift of love, this is the greatest gift. To return it is one of the greatest of human acts. The virtue of justice helps us to live lives of gratitude, of reverence, of joy and of greatness.
SJC.
Anyone wishing to make a further study may consult:
Josef Pieper, The Four Cardinal Virtues, University of Notre Dame Press, 1966.
St. Thomas Aquinas, Summa Theologica, II.II. Q. 58f.
The Catechism of the Catholic Church, no. 1803 – 1811.