I don't buy into the Light Doctrine. That establishes a "doctrine" a "teaching" a principle that would permit anyone outside of full
Acts 2:38 or Oneness to be saved based on what little they might know concerning the fullness of biblical truth.
What troubles me most about the Light Doctrine is that it would make NOT sharing the fullness of truth with other "Christians" in their best interest. It would be best to allow them to live in all the light they know and be saved, than to present the fullness of truth, risk them rejecting it, and then have them be condemned.
I'm of the opinion that there is absolutely no
assurance of salvation outside of
Acts 2:38. All we can do is entrust the fate of those faithful and devout Christians who die outside of
Acts 2:38 into the hands of God. He is a righteous judge and will always do what is just. May God have mercy on their souls. And I think we should leave it there.
I cannot in good conscience refer to anyone outside of
Acts 2:38 and tell you that they were saved with absolute assurance. Likewise, I cannot look at you and tell you in good conscience that I know how God will judge such a one and condemn them to Hell with absolute assurance. I can only entrust their fate to God, knowing He will judge righteously.
With that said, I admonish that we preach, teach, and obey
Acts 2:38 so that we can share and experience the blessed assurance of eternal salvation.