The commandments of the Law of Moses require both interior and exterior acts. There are commandments which pertain to the heart (love of G-d, to love of neighbor, fear of G-d etc.) and commandments which pertain to the body (resting on the Sabbath, eating kosher food, etc.). Virtually all the commandments of Jesus relate to interior acts. True, he requires acts of charity. He requires us to feed the hungry, clothe the naked, visit the sick etc. but that is because those acts bear witness to love. It is the love that he requires, and it has been said by Catholic saints that, without love, even such acts are meaningless.