In that day I will raise up the tent of David who is fallen, and close up its breaches, and I will raise up its ruins, and I will build it as in the days of old;
David's kingdom is a type of Christ's; and the restoration of the fallen tabernacle is the same thing as the raising up of one of David's posterity (Christ) to sit upon David's throne forever, a prophecy of the resurrection of Christ and his enthronement in heaven, as Peter pointed out (Acts 2:30,31).  No one could possibly be expected to raise up again the kingdom of David, except one of his descendants, this being the significance of the genealogies of Jesus which show him to be of "the flesh of David."  Thus, in this extended meaning of the "fallen tabernacle" being restored, there is also hidden this prophecy of the restoration of David's throne "in the spiritual sense."  All kinds of errors result from a misunderstanding of the last clause of this verse: