“First of all, then, I urge that supplications, prayers, intercessions, and thanksgivings be made for all men, for kings and all who are in high positions, that we may lead a quiet and peaceable life, godly and respectful in every way” (1 Tim. 2:1–2).
The bible makes it clear that we are to pray for each other. Why not ask the Saints to pray for us also? If you believe in life after death, then they are more alive being with God than we are. They have a special place with God so we should ask them to pray to God for us. Intercessory pray is in many places in the bible. Even Protestants have “prayer groups”. In fact most Christians have participated in prayer groups asking prayers for one or more. We pray for the dead “so they may be loosed from their sins”, also biblical.