The Septuagint  is a Greek translation that Jewishscholars created in the 3rd century b.c.for the many Jews who could not understand Hebrew.

In Roman Catholic theology, transubstantiation is the doctrine that, in the Eucharist, the substance of the bread and the wine used in the sacrament is literally changed into the substance of the Body and the Blood of Jesus] while all that is accessible to the senses remains as before.