consecrate
/ˈkän(t)-sə-ˌkrāt/
adjective
dedicated to a sacred purpose
verb
to induct (a person) into a permanent office with a religious rite; especially : to ordain to the office of bishop
to make or declare sacred; especially : to devote irrevocably to the worship of God by a solemn ceremony
to effect the liturgical transubstantiation of (eucharistic bread and wine)
idiom
to officially promise to give one's time and attention to something (especially a religion)
They consecrated themselves to the church.