Types of OSAS [Update 11/29/2025]
(Once Saved Always Saved)

Unrestricted OSAS [AKA: Free Grace, Pure OSAS]
—>A saved person is eternally secure but is able to both live in sin and stop believing the gospel entirely. If you believe that a saved person has the capability to fall into Islam or Catholicism or hate Jesus Christ and still go to heaven even if unrepentant, then you are the purest form of OSAS.

OBAB [Once a Believer Always a Believer] (Corrupted OSAS)
—>It is impossible for a saved person to stop believing the gospel.
—>If a saved person appears to have stopped believing, then they never believed to begin with.
Note: This is the diet-version of Perseverance of The Saints

Perseverance of The Saints (Corrupted Eternal Security)
—>A saved person is never going to stop living a holy life in obedience to God nor stop believing the gospel.
—>If a person lives in "unrepentant sin", then they never believed to begin with.

[LINK] — See the most up-to-date chart
[LINK] — Sub-Types of OBAB
[LINK] — Sub-Types of Perseverance of The Saints
[LINK] — OSAS Salvation Exclusion Scale (AKA: Who is saved outside of my OSAS position?)

[LINK] — 7 Essays Disproving OBAB and Perseverance of The Saints