The doctrine of Election teaches that God chose certain individuals to receive his saving grace. This took place in eternity, before time. Particular redemption says that Christ died to appropriate that saving grace for those chosen ones, when he died on the cross. Effectual calling says that God calls those chosen ones to repentance and faith in Jesus Christ, by bestowing that saving grace upon them at the moment of their conversion. Election and predestination are two words in the theology of the New Testament which are closely related.
Predestination literally means to make certain or to secure someone's destiny beforehand.
With regard to salvation, Foreknowledge and Predestination took place in eternity past, but God's Calling takes place in space and time. Calling is that act by which God invites men to accept, by faith the salvation provided by Christ. Scripture distinguishes between the general or external call to all men and the special or effectual call to the elect. You did evil in my sight and chose what displeases me. Whoever believes and is baptized will be saved, but whoever does not believe will be condemned.