Today, a brief reflection from the apostle on the fruitlessness of acts that lack love:
85. Certainly there can be no love without works of love, but this Beatitude reminds us that the Lord expects a commitment to our brothers and sisters that comes from the heart. For “if I give away all I have, and if I deliver my body to be burned, but have no love, I gain nothing” (1 Corinthians 13:3).
… and a caution from the Lord:
In Matthew’s Gospel too, we see that what proceeds from the heart is what defiles a person (cf. 15:18), for from the heart come murder, theft, false witness, and other evil deeds (cf. 15:19). From the heart’s intentions come the desires and the deepest decisions that determine our actions.
You can check the full document Gaudete et Exsultate on the Vatican website.