Early Church Evidence Against Transubstantiation

"Now let us speak briefly concerning sacrifice itself. “Ivory,” says Plato, “is not a pure offering to God.” What then? Are embroidered and costly textures? Nay, rather nothing is a pure offering to God which can be corrupted or taken away secretly. But as he saw this, that nothing which was taken from a dead body ought to be offered to a living being, why did he not see that a corporeal offering ought not to be presented to an incorporeal being?...There are two things which ought to be offered, the gift and the sacrifice; the gift as a perpetual offering, the sacrifice for a time. But with those who by no means understand the nature of the Divine Being, a gift is anything which is wrought of gold or silver; likewise anything which is woven of purple and silk: a sacrifice is a victim, and as many things as are burnt upon the altar. But God does not make use either of the one or the other, because He is free from corruption, and that is altogether corruptible. Therefore, in each case, that which is incorporeal must be offered to God, for He accepts this. His offering is innocency of soul; His sacrifice praise and a hymn. For if God is not seen, He ought therefore to be worshipped with things which are not seen."

Lactantius, Divine Institutes, Book VI, Chap. XXV