He cometh in the clouds; and every eye including those who pierced Him shall see Him

Revelation 1:7: 

Behold, he cometh with clouds; and every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen.

Matthew 24: 

27 For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be.

28 For wheresoever the carcase is, there will the eagles be gathered together.

29 Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken:

30 And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory.

31 And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other.

Mark 13:

24 But in those days, after that tribulation, the sun shall be darkened, and the moon shall not give her light,

25 And the stars of heaven shall fall, and the powers that are in heaven shall be shaken.

26 And then shall they see the Son of man coming in the clouds with great power and glory.

Luke 21:

27 And then shall they see the Son of man coming in a cloud with power and great glory.

32 Verily I say unto you, This generation shall not pass away, till all be fulfilled.

33 Heaven and earth shall pass away: but my words shall not pass away.

SEE:

Jesus Already Returned (Bible Proof)

If Heaven And Earth Did Not Pass (As Jesus Said), Then We Are Still Under Every Jot and Tittle of the Law [and hence Jesus Did Not Fulfill the Law]

Jesus established the Heaven and Earth of the New Covenant and replaced the Heaven and Earth of the Old Covenant World

Look at the events stated in Matthew 24, Mark 13 and Luke 21 that occur before the destruction of Jerusalem and the temple–THIS HAPPENED IN 70 AD; AND NOT IN THE FUTURE