Constitutive and Invocative Blessings

Every liturgical blessing is first directed to God in praise and then asks divine help for persons and for their use of created things. Sacramentals derive their efficacy from Christ's Paschal mystery through the Church's intercession; they dispose the faithful to receive grace and sanctify the circumstances of life. They do not confer sanctifying grace in the same manner as the seven sacraments.^[1][2]

The terms constitutive and invocative describe a real traditional distinction but should not be treated as magic categories. The approved rite, competent minister, intention of the Church, and applicable canon law determine what a blessing does.^[3]

A constitutive blessing stably sets apart a person or object for divine worship or a recognized sacred state or function. Dedications and consecrations are closely related acts with their own proper rites. Because the result endures, constitutive acts can carry canonical effects concerning use, administration, loss of sacred character, or the minister competent to perform them.

Examples must be stated from the current liturgical book rather than inferred from colloquial speech. A church or fixed altar is dedicated; a chalice or paten is blessed according to the rite; an abbot or abbess receives a proper blessing. The terminology has varied historically, so an old book's “consecration” may correspond to a present dedication or blessing without a change in Catholic faith.

An invocative blessing asks God's protection, health, fruitfulness, or help for persons, food, homes, travel, tools, animals, and innumerable circumstances. It does not ordinarily withdraw the person or thing from normal use or create an enduring sacred object. A blessed meal remains food; a blessed vehicle remains an ordinary vehicle to be used responsibly.

Laypersons can preside at certain blessings as the liturgical books and diocesan norms permit, especially those closely tied to baptismal life and family prayer. Blessings more closely connected with ecclesial and sacramental life are reserved to a bishop, priest, or deacon. No minister may invent a promise that the Church's rite does not make.