MG wrote:An interesting question might be whether or not polygamy would have been 'a thing' without Joseph's inquisitiveness. Does God already know the questions that are going to be asked?
God has a glorified physical body and a wife. Now, does he have just one wife, or does he have multiple wives? It use to be a common teaching that God was married to Mary in order to be Jesus's literal father. If God has multiple wives, then polygamy was an eternal law long before Joseph asked about it. As you pointed out, polygamy existed in the Old Testament. Polygamy is very much a thing without Joseph asking about it.
If certain questions aren't asked that need to be asked does God step in or just let things transpire and/or move off some other direction? Does He then guide things back to where they 'ought to be'?
I honestly don't know where you're going with this. You mean if Joseph didn't ask about polygamy, would God have introduced it anyway? Yes. Just as God would have restored the Church without Joseph Smith. If Joseph failed to ask God which church was true in the grove, then at some point, God would have found another vessel. If Joseph failed to ask about polygamy, and if it's truly an eternal law, then God would have found another way to bring it to pass, eventually.
Now, if God only has one wife, and wasn't the literal father of Jesus, and polygamy has nothing to do with God's eternal laws, but Joseph began to go in that direction such that God had to go along with it to keep it from blowing up the best he could, well, that doesn't fit any Mormon theology I learned. If polygamy was wrong, and Joseph asked about it, then God would have told him "no" just like he told him "join none of them" in regards to other churches. If Joseph would have joined the Presbyterian church, would God have said, "well, shucks, I guess Presbyterian it is, let's give it a go and see where it leads." However, for those convinced by Tolkien, I don't think we can rule out the possibility.
Lost Gospel of Thomas 1:8 - And Jesus said, "what about the Pharisees? They did it too! Wherefore, we shall do it even more!"