1623 In the Latin Church, it is ordinarily understood that the spouses, as ministers of Christ’s grace, mutually confer upon each other the sacrament of Matrimony by expressing their consent before the Church. In the Eastern liturgies the minister of this sacrament (which is called “Crowning”) is the priest or bishop who, after receiving the mutual consent of the spouses, successively crowns the bridegroom and the bride as a sign of the marriage covenant.
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 is the priest or bishop who, after receiving the mutual consent of the spouses, successively crowns the bridegroom and the bride as a sign of the marriage covenant.){kind=link}
My dad and I had a discussion about this recently. He refused to believe that in the Latin rite, the ordinary ministers are the couple themselves. I found it difficult to, despite the availability of Spanish and English catechisms, explain the role of the priest at such a rite.