refers to a christian belief (see jesus christ), taken from the Calvinist doctrine of unconditional election, which derives that since some of mankind are predestined by God for salvation, the remainder are necessarily pre-ordained to damnation, or 'reprobation'. In Calvinist terminology, the non-elect are often referred to as 'the reprobate'. Similarly, when a sinner is so hardened as to feel no remorse or misgiving of conscience, it is considered as a sign of reprobation.the view of predestination as described by john calvin (1509-1564), one of the most important christian theologians of the protestant reformation, is sometime's referred to as "double predestination" because in it God predestines some people for salvation and some for Reprobation. On the spectrum of beliefs concerning predestination, Calvinism is the strongest form among Christians. It teaches that God's predestinating decision is based on the knowledge of His own will rather than foreknowledge, concerning every particular person and event; and, God continually acts with entire freedom, in order to bring about his will in completeness, in an unfathomable way, not accessible to scrutiny, so that the freedom of the creature is not violated.

Calvinists seek never to divide predestination in a mathematical way. Their doctrine is uninterested, in the abstract, in questions of "how much" either God or man is responsible for a particular destiny. Questions of "how much" will become hopelessly entangled in paradox, Calvinists teach, regardless of the view of predestination adopted. Instead, Calvinism divides the issues of predestination according to two kinds of being, knowledge, and will, distinguishing that which is divine from that which is human. Therefore, it is not so much an issue of quantity, but of distinct roles, or modes of being.you can read 'Treatises on the Eternal Predestination of God the Secret
Providence of God', john calvin's work on predestination, online: click here.