Might it be worth saying that for those who feel led to look at deeper layers within scripture, we should do it in humility and not out of a spirit of dissatisfaction with the plain meaning. To seek an understanding of the depth and greatness of God so that that can be shared with the lost, not just for knowledges sake, is surely a goal worth striving towards?
Might it also be worth saying that for those who don’t find such endeavours edifying, there is much that is pressing in the world right now, with the possible fulfilments of Psalm 83, Isaiah 17 and maybe Jeremiah’s prophecy of Elam perhaps not too distant, I think the Lord would have us all about His business, reaching the lost either with the simplicity of the gospel or with information that might demolish strongholds keeping them from coming to the light?