As for sins of human weakness, they are only dust, and God does not hold in horror this dust inherent to our misery. But sins of the will, of affection, of habit! It would be better not to receive the body of Our Lord than to take It into our heart, if stained with habitual sins. He enters but with disgust. We do violence to Him. He is bound, and He obeys us. But at the hour of death, we shall see His vengeance! His voice will be terrible: "How didst thou dare to receive Me into thy body sullied with abomination! "
--St. Peter Julian Eymard