Mathew 19: 27 – 28 27) Then answered Peter and said unto him, Behold, we have forsaken all, and followed thee; what shall we have therefore? 28) And Jesus said unto them, Verily I say unto you, That ye which have followed me, in the regeneration when the Son of man shall sit in the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel.
Shortly before Christ was crucified, he told Peter and the other eleven that the ones that followed him would sit on twelve thrones over the twelve tribes of Israel during the Kingdom age. After Christ was crucified, he showed himself unto the twelve, and told them to wait in Jerusalem for the Holy Spirit. And the twelve asked him if he was now going to set up his Kingdom.
Acts 1: 4 – 11 4) And, being assembled together with them, commanded them that they should not depart from Jerusalem, but wait for the promise of the Father, which saith he, ye have heard of me. 5) For John truly baptized with water; but ye shall be baptized with the Holy Ghost not many days hence. 6) When they therefore were come together, they asked of him, saying, Lord, wilt thou at this time restore again the kingdom to Israel ? 7) And he said unto them, It is not for you to know the times or the seasons, which the Father hat put in his own power. 8) But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem , and in all Judaea, and in Samaria , and unto the uttermost part of the earth. 9) And when he had spoken these things, while they beheld, he was taken up; and a cloud received him out of their sight. 1) And while they looked stedfastly toward heaven as he went up, behold two men stood by them in white apparel; 11) Which also said, Ye men of Galilee , why stand ye gazing up into heaven? This same Jesus, which is taken up from you into heaven, shall so come in like manner as ye have seen him go into heaven.
These men expected Christ to return and set up his kingdom during their life time, including going through the 7 year tribulation, as Peter explains to the Jews after these followers of Christ had been filled with the Holy Spirit and were speaking different languages. The Jews that heard them thought they were drunk.
Acts 2: 12 – 20 12) And they were all amazed, and were in doubt, saying one to another, What meaneth this? 13) Others mocking said, These men are full of new wine. 14) But Peter, standing up with the eleven, lifted up his voice, and said unto them, Ye men of Judaea, and all ye that dwell at Jerusalem, be this known unto you, and hearken to my word: 15) For these are not drunken, as ye suppose, seeing it is but the third hour of the day. 16) But this is that which was spoken by the prophet Joel; 17) And it shall come to pass in the last day, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams: 18) And on my servants and on my handmaidens I will pour out in those days of my Spirit; and they shall prophesy: 19) And I will shew wonders in heaven above, and signs in the earth beneath; blood, and fire, and vapour of smoke; 20) The sun shall be turned into darkness and the moon into blood, before that great and notable day of the Lord come:
This is talking about the 7 years of tribulation, when the Lord comes with his wrath to destroy a unbelieving world.