Eternal security


Eternal security, also known as "once saved, always saved", is the belief providing Christian believers with absolute assurance of their final salvation. Its development, particularly within Protestantism, has given rise to diverse interpretations, especially in relation with the defining aspects of theological determinism, libertarian free will and the significance of personal perseverance.
Before the Reformation, belief in forms of eternal security were anecdotal. Besides, in the early 5th century, the Augustinian soteriology view of predestination by predetermination emerged, though it did not endorse eternal security. By the 16th century, this concept became integrated into the theology of John Calvin and other reformers. Calvinist circles initially embraced eternal security as one of the practical interpretations of the doctrine of "perseverance of the saints". Over time, the term became a synonym of the Calvinist doctrine of perseverance independently of its practical interpretations.
In the early 20th century, eternal security started to become a defining doctrine of the Southern Baptist traditionalism. Around the same period, it also became part of Plymouth Brethren theology. Those two forms represents its predominant forms today. In the 1980s, the Free Grace movement voiced this doctrine independently of the notion of personal perseverance, with subsequent variations emerging such as the "Hyper-Grace" teaching.

Definition and terminology

Definition

Eternal security is a doctrine providing believers with absolute assurance of their inevitable final salvation.
The concept of "eternal security" emerging around 1900 within different Evangelical groups, represents its current prevailing form within Protestantism. Indeed, the first documented occurrences of the terms supporting this concept were "security of the believers" in 1873 within Southern Baptist circles and "eternal security" in 1913 within Plymouth Brethren circles. This predominant form entails an unconditional eternal security which is not grounded on a Calvinist theology.

Views

This doctrine's development within Protestantism has led to various interpretations, especially related to the significance of theological determinism, libertarian free will, and personal perseverance:
  1. Eternal security based on the faith that the believer is an elect by divine determination..
  2. Eternal security based on the faith that regeneration leads to unconditional perseverance and then salvation..
  3. Eternal security based on the faith that regeneration leads to salvation independently of perseverance..
Alternative perspectives on eternal security have been proposed, some within classical theism, such as Karl Barth's implicit Christian universalism, while others lie outside of classical theism, as seen in Process Theism.

Terminology

Because one practical interpretation of the Calvinist doctrine of "perseverance of the saints" leads to "eternal security", over time, the term became synonymous with the doctrine itself. By the early 20th century, "eternal security" was used as a strict synonym for "perseverance of the saints". However, given the theological significance of the term "eternal security" in common usage, it's important to distinguish them. Indeed, some Calvinist theologians reject the use of "eternal security" for their doctrine, as do proponents of non-Calvinist forms of eternal security.
The non-Calvinist forms of eternal security have been categorized by some theologians as "sub-Calvinist", or "neo-Calvinist". This terminology reflects their more recent emergence and their historical connection to Calvinist theology.

Historical influences and developments

Manichean theological influences

was a Gnostic sect founded in the 3rd century. It significantly influenced early Christian churches, promoting spiritual practices like asceticism and sacerdotalism. Manichaeism adopted a dualistic worldview, contrasting a spiritual realm of good with a material realm of evil, anticipating the gradual restoration of light from the material to the spiritual realm. In terms of soteriology, it maintained that God unilaterally selected the elect for salvation and the non-elect for damnation according to His will. For instance, in 392, a Manichean presbyter said that "God has chosen souls worthy of Himself according to His own holy will. that under His leadership those souls will return hence again to the kingdom of God according to the holy promise of Him who said: “I am the way, the truth, and the door”; and “No one can come unto the Father, except through me.”".

Augustine's doctrine of election by predetermination

Before his conversion to Christianity in 387, Augustine of Hippo, adhered to three deterministic philosophies: Stoicism, Neoplatonism and Manichaeism, being significantly influenced by them. In particular, he seemed to adopt Manichean perspectives on various theological aspects, notably on the nature of good and evil, the separation of groups into elect, hearers, and sinners, the hostility to the flesh and sexual activity, and his dualistic theology. After his conversion, he taught traditional Christian theology against forms of theological determinism until 412.
However, during his conflict with the Pelagians, he seemed to reintroduce certain Manichean principles into his thought, and was accused by his opponents for so doing. Augustine's change in stance was notably influenced by the controversy over infant baptism with the Pelagians. Augustine's early exposure to Stoicism, which emphasized meticulous divine predeterminism, further shaped his views on infant baptism. Moreover, according to Manichean doctrine, unborn and unbaptized infants were condemned to hell due to their physical bodies. He asserted that God predetermined parents to seek baptism for their newborns, thereby linking water baptism to regeneration. It is then God who ultimately predetermines which infants are damned and which are justified.
Augustine had to explain why some baptized individuals continued in the faith while others fell away and lived immoral lives. He taught that among those regenerated through baptism, some are given an additional gift of perseverance which enables them to maintain their faith and prevents them from falling away. Without this second gift, a baptized Christian with the Holy Spirit would not persevere and ultimately would not be saved. Augustine developed this doctrine of perseverance in De correptione et gratia. While this doctrine theoretically gives security to the elect who receive the gift of perseverance, individuals cannot ascertain whether they have received it.

Views asserting eternal security independently of perseverance

in his day mentioned individuals who denied any future judgement based on works. He refers to them in his commentary on Romans 10:9. While not considered heretical, he rejected their views, emphasizing that faith must be expressed through the actions of believers to be meaningful.
In Augustine's day, multiple viewpoints on the possibility of eternal damnation were discussed. One viewpoint posited that being baptized and partaking in the Lord's body within the Church served as absolute assurance of salvation, extending even to those who became heretics. Another viewpoint, emerging in the early church, advocated for forgiveness in salvation despite moral failings. According to this view, even if a Christian lived a life marked by significant disobedience, their salvation could still be guaranteed as long as they remained within the Church. Augustine disputed these ideas, suggesting they arose from a misunderstanding of God's compassion and a misinterpretation of 1 Corinthians 3:11–15. This passage was used to argue that faith alone could secure salvation, even if one's actions were morally evil. Augustine in his criticism of these views does not mention exact names. Nevertheless, both Jerome and Ambrose shared in the doctrine that all those who have trusted in Christ would eventually be reunited to God and saved sooner or later, even if they have sinned and fallen away. An alternative interpretation suggests that Ambrose held Christian universalist beliefs.
Jovinian maintained that a genuinely regenerated person who undergoes baptism cannot be lost, writing: "Those, who are once with full faith born again by baptism, cannot be overcome by the devil". His theory is not directly tied to the Augustinian idea of perseverance but rather stems from his denial of works having merit. A Pseudo-Chrysostom author from the 5th to 6th century suggested that Christians could enter heaven though without experiencing Christ's glory, even if they break his commandments, as implied by a commentary on Matthew 5:19.

Proponents of Augustinian view of predestination

Between the 5th century and the Reformation in the 16th century, theologians who upheld the belief in election by predetermination, following the Augustinian teaching, included: Gottschalk, Ratramnus, Thomas Bradwardine, Gregory of Rimini, John Wycliffe, Johann Ruchrat von Wesel, Girolamo Savonarola and Johannes von Staupitz.

Eternal security based on election by predetermination

The Calvinist doctrine of perseverance of the saints

Orthodox forms of Calvinism view God's providence as expressed through theological determinism. This means that every event in the world is determined by God. Concerning salvation, Calvin expressly taught that it is God's decision to determine whether an individual is saved or damned. Indeed, human actions leading to this end are also predetermined by God. In accordance, he held to the doctrine of perseverance of the saints, contending for the unconditional preservation of the elect.

Practical interpretations of the doctrine of perseverance of the saints

Practical interpretation rejecting an absolute assurance of salvation

According to Calvinism, apostasy is not possible for those who are true Christians. However, being a true Christian is only demonstrated by perseverance to the end. This arises because there are instances where individuals appear to come to God but later display definitive apostasy. To address this phenomenon, Calvinist theologians have postulated that common grace might include effects that cannot be distinguished from effectual calling and subsequent irresistible grace. About that issue, Calvin formulated the concept of a temporary grace that appears and works for only a while in the reprobate but then to disappears. According to this concept, the Holy Spirit can create in some people effects which are indistinguishable from those of the irresistible grace of God, producing also a visible "fruit" in their life. Temporary grace was also supported by later Calvinist theologians such as Theodore Beza, William Perkins, John Owen, A. W. Pink and Loraine Boettner. This suggests that the knowledge of being a true Christian is theoretically not accessible during life. Thus a first interpretation of the doctrine of perseverance of the saints acknowledges explanations of apparent apostasy like "evanescent grace," which avoids offering to the believer absolute assurance of salvation during life. Several Reformed theologians have expressed a non-absolute assurance of salvation view.