Matt 17:9 And as they came down from the mountain, Jesus charged them, saying, Tell the vision to no man, until the Son of man be risen again from the dead.
10 And his disciples asked him, saying, Why then say the scribes that Elias must first come?
11 And Jesus answered and said unto them, Elias truly shall first come, and restore all things.
12 But I say unto you, That Elias is come already, and they knew him not, but have done unto him whatsoever they listed. Likewise shall also the Son of man suffer of them.
This is echoed by Acts 3:21
21 Whom the heaven must receive until the times of restitution[restoration] of all things, which God hath spoken by the mouth of all his holy prophets since the world began.
Christ said it and The Acts said it. There would be an apostasy after which all things would be restored before He could come again.
10 And his disciples asked him, saying, Why then say the scribes that Elias must first come?
11 And Jesus answered and said unto them, Elias truly shall first come, and restore all things.
12 But I say unto you, That Elias is come already, and they knew him not, but have done unto him whatsoever they listed. Likewise shall also the Son of man suffer of them.
This is echoed by Acts 3:21
21 Whom the heaven must receive until the times of restitution[restoration] of all things, which God hath spoken by the mouth of all his holy prophets since the world began.
Christ said it and The Acts said it. There would be an apostasy after which all things would be restored before He could come again.