Catechism in a Year
Monday, November 05, 2018
345. What is required when one of the spouses is not a Catholic?
A mixed marriage (between a Catholic and a baptized non-Catholic) needs for liceity the permission of ecclesiastical authority. In a case of disparity of cult (between a Catholic and a non-baptized person) a dispensation is required for validity. In both cases, it is essential that the spouses do not exclude the acceptance of the essential ends and properties of marriage. It is also necessary for the Catholic party to accept the obligation, of which the non-Catholic party has been advised, to persevere in the faith and to assure the baptism and Catholic education of their children.
Further reading: CCC 1633-1637
346. What are the effects of the sacrament of Matrimony?
The sacrament of Matrimony establishes a perpetual and exclusive bond between the spouses. God himself seals the consent of the spouses. Therefore, a marriage which is ratified and consummated between baptized persons can never be dissolved. Furthermore, this sacrament bestows upon the spouses the grace necessary to attain holiness in their married life and to accept responsibly the gift of children and provide for their education.
Further reading: CCC 1638-1642
These excerpts are from the Compendium of the CCC.