Roger Pearse has posted and released to public domain a translation of the until recently missing ending of the Second Oration Against the Jews by St John Chrysostom. The full text of this second oration is known to exist in only one manuscript belonging to the Leimonos Monastery on the island of Lesvos in Greece. The discovery of the full text of the sermon is described by the intrepid explorer who found it, Wendy Pradels, here.
An English translation of the Second Oration (without the above “lost” section) is available at the Medieval Sourcebook, though it appears to lack the incomplete ending that, if memory serves, manifests itself in a sentence fragment. English translations of the other Orations Against the Jews are available on the same page.
Many thanks to Roger!