The Salvation Of The Jews (Part 3 of 3)

A word about the  Jewish remnant and one of my favorite Bible passages .   I am intrigued by, but don't really understand, the idea of Jesus preaching to the spirits in prison in the days of Noah.  Here is the passage:

1 Peter 3
18 For Christ also hath once suffered for sins, the just for the unjust, that he might bring us to God, being put to death in the flesh, but quickened by the Spirit:
19 By which also he went and preached unto the spirits in prison;
20 Which sometime were disobedient, when once the longsuffering of God waited in the days of Noah, while the ark was a preparing, wherein few, that is, eight souls were saved by water.

Based on the previous two blog posts, it appears that the fate of the spirits in prison may be interpreted in two ways. On the one hand, if we look to Romans 11:26, the spirits in prison will be finally saved when the fullness of the gentiles comes in. On the other hand, if we look to Romans 11:5, the spirits may not be included as part of the Jewish remnant and will, in the end, shall cast into a furnace of fire, where there shall be wailing and gnashing of teeth.

But all of this is God's business, which I may not need to concern myself with.  And, my conclusion is as with my previous post:

Romans 11
33 O the depth of the riches both of the wisdom and knowledge of God! How unsearchable are his judgments, and his ways past finding out!