It is a demonstration that the principle of "literal whenever possible" is unbiblical...., unless you can show me the "literal" tabernacle of David being raised up during the period in Acts like James said it was....., that is, unless you are still claiming that the first phrase of Amos 9:11 was referring to a speech James made in about AD 50, and then the rest of the verse jumps forward past the events in Acts 15 to the millenium. You are not still claiming that, are you?
James said no such thing. He said that it would be rebuilt after Jesus returns --- and Jesus had not returned by 50 AD and has still not returned as of today. The tabernacle of David will not be rebuilt until He returns.
Note that the words: "After this I will return" are James' words not Amos's. He then begins to quote Amos after that phrase, meaning that after Jesus returns, He will build again the tabernacle of David.
So has Jesus returned yet????