 Proponents also typically emphasize the grace and mercy of God toward all men, although teaching also that only some are predestined for salvation.In common English parlance, the doctrine of predestination often has particular reference to the doctrines of Calvinism.The version of predestination espoused by John Calvin, after whom Calvinism is named, is sometimes referred to as "double predestination" because in it God predestines some people for salvation (i.e.