I would just study it a bit further. if you dont understand something, then all the more reason to study a bit deeper; and further into the Bible then you have before. Repetition repetition .
I did my study, and compared what he said to what the bible said.
The bible says there was only 8 people on the ark, and that everybody was of one accord with the same language tell the tower of Babel.
Murray says that the other nations and languages existed before the flood, and two of each of these nations was on the ark. The bible clearly shows other nations that came from Noah's sons genealogy, and the other nations came at the tower of Babel after the flood.
As for the rapture, the bible does not have that exact word, but it does say that we will not be here and caught up in the air to be with the Lord so that we are not here to endure God's wrath that is poured out in the bowl judgments. And there are multiple scriptures that point to this event.
Murray ignores all these scriptures, and states it to be false or false context applied. So by his understanding believers will still have to endure God's wrath, which the bible says we will not.