The worship most acceptable to God
106. Here I think of Saint Thomas Aquinas, who asked which actions of ours are noblest, which external works best show our love for God. Thomas answered unhesitatingly that they are the works of mercy towards our neighbour, even more than our acts of worship: “We worship God by outward sacrifices and gifts, not for his own benefit, but for that of ourselves and our neighbour. For he does not need our sacrifices, but wishes them to be offered to him, in order to stir our devotion and to profit our neighbour. Hence mercy, whereby we supply others’ defects, is a sacrifice more acceptable to him, as conducing more directly to our neighbour’s well-being”.
 Cf. Summa Theologiae, II-II, q. 30, a. 4.
 Ibid., ad 1.