Liturgical abuse was not new to St. Francis, especially when it came to the Holy Eucharist. He writes,
“Let us all consider, O clerics, the great sin and ignorance of which some are guilty regarding the most holy Body and Blood of our Lord Jesus Christ and His most holy Name and the written words of consecration. For we know that the Body cannot exist until after these words of consecration. For we have nothing and we see nothing of the Most High Himself in this world except [His] Body and Blood, names and words by which we have been created and redeemed from death to life.
But let all those who administer such most holy mysteries, especially those who do so indifferently, consider among themselves how poor the chalices, corporals, and linens may be where the Body and Blood of our Lord Jesus Christ is sacrificed. And by many It is left in wretched places and carried by the way disrespectfully, received unworthily and administered to others indiscriminately. Again His Names and written words are sometimes trampled under foot, for the sensual man perceiveth not these things that are of God. 1 Shall we not by all these things be moved with a sense of duty when the good Lord Himself places Himself in our hands and we handle Him and receive Him daily?”
Assisi Codex Title: ON REVERENCE FOR THE LORD’S BODY AND ON THE CLEANLINESS OF THE ALTAR