Foecundus of Hermiane (same age; Justinian’s time) seconds Gelasius: Christ’s words are improper speech; presence in the Eucharist is spiritual.
We call the sacrament in consecrated bread and cup His body and blood — not that bread is PROPERLY body or cup blood, but that they contain the MYSTERY — following Vigilius of Trent on the body’s natural local absence on earth.
Latin
Gelasio suffragatur ejusdem Seculi Episcopus Hermianensis FOECUNDUS, Justiniani Imperatoris tempore florens, (Vid. Petavii Rationarium tempor. part. 1. Lib. 7. cap. 7. & 8.) Hic Librô nonô Operis sui, improprietatem verborum Christi æquè ac Spiritualem ejus in S. Eucharistia præsentiam, hisce significatum it: SACRAMENTUM inquit, corporis & sanguinis Christi, quod est in pane & poculo consecrato, corpus ejus & sanguinem dicimus: Non quod PROPRIE corpus ejus sit panis, & poculum sanguis, sed quod in se MYSTERIUM corporis sanguinisque continent, secutus scil. Doctrinam, de corporis Christi naturali localique absentiâ in terris, VIGILII Episcopi Tridentini, triginta propemodum annis illo senioris,