The Full Gospel Theory

Reference I:

6 [I] ^amarveled how it was that [my late brother] had obtained an ^binheritance in [the Celesital] kingdom, seeing that he had departed this life before the Lord had set his hand to ^cgather Israel the second time, and had not been ^dbaptized for the remission of sins.

7 Thus came the ^avoice of the Lord unto me, saying: All who have died ^bwithout a knowledge of this gospel, who would have received it if they had been permitted to tarry, shall be ^cheirs of the celestial kingdom of God;

8 Also all that shall die henceforth without a knowledge of it, who ^awould have received it with all their hearts, shall be heirs of that kingdom;

D&C 137

Reference II:

9 We believe all that God has ^arevealed, all that He does now reveal, and we believe that He will yet ^breveal many great and important things pertaining to the Kingdom of God.

LDS 9^th Article of Faith, emphasis mine

I have held a theory for a little while concerning the necessity of being baptized into the LDS Church in order to inherit a celestial glory. The theory is quite simple and is based on the above references which, in sum, give us the following two principles:

1. The sole requirement to gain a celestial glory is to recieve the Gospel of Jesus Christ with all one's heart.
2. Our understanding of the Gospel is still missing important parts.

These two concepts would have me believe that those who presently would not receive the imperfect chunk of the Gospel we have right now with all their hearts but would receive the whole, nothing missing, Gospel with all hearts will receive celestial glories.

This is, of course, if their hearts receive fully the true, perfect parts of the Gospel we understand now but are merely being held back by the corrupted, imperfect parts still needing to be fixed -- as a past example, the belief the Church dropped concerning Blacks being unable to truly gain exaltation.

I think, in the end, there's going to be a lot of, "Hey, how come they made it into heaven and I didn't? I did everything your Church told me to, and they weren't even members!" with responses of "You & I, we weren't as close as you thought, kid."

... now where did I hear something like this before? ...

So, I say, before we (okay, so I don't do this, but I know a lot of people who do) get all worried about our neighbor's eternal well-being because they aren't members of the Church nor do they have any desire to be members, let's remember we are still missing some important parts, which parts may be required before they can accept the Gospel completely.

After all, you really can't accept something completely that isn't complete, itself. You can completely accept the already complete parts, yes, but you can't completely accept a whole until it is complete.