The intercession of saints is a Christian doctrine that maintains that saints can intercede for others. The invocation of the saints is the practice of persons requesting saints to intercede for them; the comprecation of saints is the practice in which Christians ask God for a share in the prayers offered by the saints. The practice of the invocation of the saints is held by the Catholic Church, Eastern Orthodox Church, the Assyrian Church of the East, the Oriental Orthodox Churches, and some Lutherans and Anglicans (chiefly those of Evangelical Catholic or Anglo-Catholic churchmanship, respectively). The Lutheran Churches and the Anglican Communion accept the doctrine of the intercession of the saints, holding that the saints (living and in heaven) pray for the Church; the practice of the comprecation of saints is accepted by these traditions, though the invocation of the saints is generally rejected by these Christian denominations (apart from certain Evangelical Catholics and Anglo-Catholics).
To intercede is to go or come between two parties, to plead before one of them on behalf of the other. In ecclesiastical usage both words are taken in the sense of the intervention primarily of Christ, and secondarily of the Blessed Virgin Mary and the angels and saints, on behalf of men and women.