Predestination is a bit of a thorny thicket for theologians. Today, strict predestinarianism (to include double predestination) is a minority view. Among the broad theological community, predestination is widely understood to be heresy.
As this paper will illustrate, that free will does not exist (the premise of strict predestination) is simply not supported in scripture and in many places directly contradicts scripture. Then there is the notion of paradox.
The doctrine reduces the eternal salvation of the elect as well as the eternal damnation of the reprobate to one cause alone -- namely to the sovereign will of a Higher Power, Being, or God. It thereby denies and excludes the free co-operation of man as a secondary factor in bringing about a happy or unhappy future in the life to come.