Intercession of the saints is a doctrine held by the Eastern Orthodox, Oriental Orthodox and Roman Catholic Churches. The practice of praying to saints can be found in Christian writings from the 3rd century onwards. The 4th-century Apostles' Creed states belief in the communion of saints, which certain Christian churches interpret as supporting the intercession of saints. As in Christianity, this practice is controversial in Judaism and Islam.
Advocates of the doctrine say that Jesus' parable of The Rich Man and Lazarus in Luke 16:19–31 indicates the ability of the dead to pray for the living. On the basis of Christ's intercession for believers, who is present at the Right hand of God (Romans 8:34; Hebrews 7:25), it is argued by extension that other people who have died but are alive in Christ may be able to intercede on behalf of the petitioner (John 11:25; Romans 8:38–39).
Aquinas quotes Revelation 8:4: "And the smoke of the incense of the prayers of the saints ascended up before God from the hand of the angel".
Both those for and against the intercession of saints quote Job 5:1.
Roman Catholic Church doctrine supports intercessory prayer to saints. Intercessory prayer to saints also plays an important role in the Eastern Orthodox and Oriental Orthodox churches. Also some Anglo-Catholics believe in saintly intercession. This practice is an application of the Catholic doctrine of the Communion of Saints. It is understood that some of the early basis for this was the belief that martyrs passed immediately into the presence of God, and could obtain graces and blessings for others. A further reinforcement, of the same idea, was derived from the cult of the angels, which, while pre-Christian in its origin, was heartily embraced by the faithful of the sub-Apostolic age.