 Zwingli approached the eucharist in a similar manner to baptism. During the first Zurich disputation in 1523, he denied that an actual sacrifice occurred during the mass, arguing that Christ made the sacrifice only once and for all eternity. Hence, the eucharist was "a memorial of the sacrifice". Following this argument, he further developed his view, coming to the conclusion of the "signifies" interpretation for the words of the institution. He used various passages of scripture to argue against transubstantiation as well as Luther's views, the key text being John 6: 63, "It is the Spirit who gives life, the flesh is of no avail". Zwingli's approach and interpretation of scripture to understand the meaning of the eucharist was one reason he could not reach a consensus with Luther.
