Q. Is it possible to put a curse on a rosary?
A. Here’s a reply from Father Reginald Martin:
In our Christian faith, a blessing is a prayer that begs God’s protection on a person, object, or project. A curse is turning to the devil or other malign spirit to ask the opposite.
The Catechism of the Catholic Church observes that blessing is “an encounter between God and man” (No. 2626). When a priest or deacon blesses an object, such as a rosary, he does so with the Sign of the Cross, which reminds us of the immensity of Christ’s love. Our using the blessed rosary to help focus our prayer allows us to renew this loving encounter.
Consider, now, invoking a curse upon a rosary. Will it harm the one using the rosary if the person is ignorant of the curse? This seems a remote possibility, as God is stronger than any demon, and the prayers of the Rosary (especially “deliver us from evil” in the Our Father) beg protection against various ills.
What of the one who curses a rosary? The First Commandment is unambiguous: God alone shall we worship. The Catechism teaches that seeking to “tame occult powers, so as to put them at one’s service and have a supernatural power over others” is gravely wrong (see No. 2117).