A “dispensation from disparity of cult,” which is a more rigorous form of permission given by the local bishop, is required for the marriage to be valid.
“In addition, only with his permission can a person, other than a Catholic, receive Communion in church during such a wedding.” Catholic-Jewish Weddings Jews and Christians share a view of marriage as a holy union and symbol of God’s bond with his people.
Stricter branches of Judaism, such as Orthodox and Conservative, forbid or strongly discourage Jews from marrying non-Jews and prohibit their rabbis from participating in interreligious marriage ceremonies.
A marriage between a Catholic and another Christian is also considered a sacrament.
In fact, the church regards all marriages between baptized Christians as sacramental, as long as there are no impediments.
The Reform branch of Judaism strongly discourages interfaith marriages, but there is no legal prohibition against it as there is in the stricter branches.