Canon 67, 69, & 70 issued by the Fourth Lateran Council [Present-day Italy]: “Canon 67…Wishing, therefore, in this matter to protect the Christians against cruel oppression by the Jews, we ordain in this decree that if in the future under any pretext Jews extort from Christians oppressive and immoderate interest, the partnership of the Christians shall be denied them till they have made suitable satisfaction for their excesses. Lastly, we decree that the Jews be compelled by the same punishment (avoidance of commercial intercourse) to make satisfaction for the tithes and offerings due to the churches, which the Christians were accustomed to supply from their houses and other possessions before these properties, under whatever title, fell into the hands of the Jews, that thus the churches may be safeguarded against loss…Canon 69… Since it is absurd that a blasphemer of Christ exercise authority over Christians, we on account of the boldness of transgressors renew in this general council what the Synod of Toledo (589) wisely enacted in this matter, prohibiting Jews from being given preference in the matter of public offices, since in such capacity they are most troublesome to the Christians. …Canon 70… Some (Jews), we understand, who voluntarily approached the waters of holy baptism, do not entirely cast off the old man that they may more perfectly put on the new one, …we decree that such persons be in every way restrained the prelates from the observance of the former rite, …”
“Medieval Sourcebook: Twelfth Ecumenical Council: Lateran IV 1215.” Paul Halsall. March, 1996, Accessed online 6/27/2011