Open theism

Open theism, also known as openness theology and free will theism, is a theological movement that has developed within evangelical and post-evangelical Protestant Christianity as a response to ideas related to the synthesis of Greek philosophy and Christian theology. It is typically advanced as a biblically motivated and philosophically consistent theology of human and divine freedom (in the libertarian sense), with an emphasis on what this means for the content of God's foreknowledge and exercise of God's power. Roger E Olson said that open theism triggered the "most significant controversy about the doctrine of God in evangelical thought" in the late 20th and early 21st centuries.

In short, open theism says that since God and humans are free, God's knowledge is dynamic and God's providence flexible. While several versions of traditional theism picture God's knowledge of the future as a singular, fixed trajectory, open theism sees it as a plurality of branching possibilities, with some possibilities becoming settled as time moves forward. Thus, the future as well as God's knowledge of it is open (hence "open" theism). Other versions of classical theism hold that God fully determines the future, entailing that there is no free choice (the future is closed). Yet other versions of classical theism hold that even though there is freedom of choice, God's omniscience necessitates God foreknowing what free choices are made (God's foreknowledge is closed). Open theists hold that these versions of classical theism are out of sync with:

and/or result in incoherence. Open Theists tend to emphasize that God's most fundamental character trait is love, and that this trait is unchangeable. They also (in contrast to traditional theism) tend to hold that the biblical portrait is of a God deeply moved by creation, experiencing a variety of feelings in response to it.

The following chart compares beliefs about key doctrines as stated by open theists and Calvinists after "the period of controversy" between adherents of the two theisms began in 1994. During this period the "theology of open theism . . . rocked the evangelical world".

Open theists have named open theism precursors to document their assertion that “the open view of the future is not a recent concept,” but has a long history.

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