On the contrary, I actually do believe that Jesus kept His word to the Disciples when He said he would. He told them that some of them won't die until they actually see Him return in their lifetime...
"For the Son of Man is going to come with his angels in the glory of his Father, and then he will repay each person according to what he has done. Truly, I say to you, there are some standing here who will not taste death until they see the Son of Man coming in his kingdom.” —Matthew 16:27-28
And then in Matt 17 - one page over - they actually see Christ IN Glory - and the saints with Him ... Elijah who represents all translated saints in glory and Moses who represents all resurrected saints in glory . It is a type of the 1 Thess 4:13-18 appearing and rapture of the saints.
Bible writers agree --
Christ's coming is in the future.
1 Peter 1:
13 Therefore, prepare your minds for action, keep sober
in spirit,
set your hope completely on the grace to be brought to you
at the revelation of Jesus Christ
1 Cor 15:
22 For as in Adam all die, so also in Christ
all will be made alive. 23 But each in his own order: Christ the first fruits, after that those who are Christ’s
at His coming, 24 then
comes the end, when He hands over the kingdom to
our God and Father, when He has abolished all rule and all authority and power.
2 Thess 1:
6 For after all it is
only right for God to repay with affliction those who afflict you, 7 and
to give relief to you who are afflicted,
along with us,
when the Lord Jesus will be revealed from heaven with His mighty angels 8 in flaming fire, dealing out retribution to those who do not know God, and to those who do not obey the gospel of our Lord Jesus. 9 These people will pay the penalty of eternal destruction, away from the presence of the Lord and from the glory of His power, 10
when He comes to be glorified among His saints on that day, and to be marveled at among all who have believed—because our testimony to you was believed.
Matt 24:
3 And as He was sitting on the Mount of Olives, the disciples came to Him privately, saying, “Tell us, when will these things happen, and
what will be the sign of Your coming, and of the end of the age?”
24 For
false christs and false prophets will arise and will provide great signs and wonders, so as to mislead, if possible, even the elect. 25 Behold, I have told you in advance. 26 So if they say to you, ‘Behold, He is in the wilderness,’ do not go out;
or, ‘Behold, He is in the inner rooms,’ do not believe
them. 27 For just
as the lightning comes from the east and flashes as far as the west, so will
the coming of the Son of Man be. 28 Wherever the corpse is, there the vultures will gather.
29 “But immediately after the tribulation of those days the sun will be darkened, and the moon will not give its light, and the stars will fall from the sky, and the powers of the heavens will be shaken. 30 And then
the sign of the Son of Man will appear in the sky, and then
all the tribes of the earth will mourn, and
they will see the Son of Man coming on the clouds of the sky with power and great glory. 31 And He will send forth His angels with a great trumpet blast, and they will gather together His elect from the four winds,
from one end of the sky to the other.
2 Thess 2:Now we ask you, brothers
and sisters,
regarding the coming of our Lord Jesus Christ and
our gathering together to Him, 2 that you not be quickly shaken from your composure or be disturbed either by a spirit, or a message, or a letter as if from us, to the effect that the day of the Lord has come. 3 No one is to deceive you in any way! For
it will not come unless the apostasy comes first, and the man of lawlessness is revealed, the son of destruction, 4 who opposes and exalts himself above every so-called god or object of worship, so that he takes his seat in the temple of God, displaying himself as being God. 5 Do you not remember that while I was still with you, I was telling you these things? 6 And you know what restrains
him now, so that he will be revealed in his time. 7 For the mystery of lawlessness is already at work; only He who now restrains
will do so until He is removed. 8 Then that lawless one will be revealed, whom
the Lord will eliminate with the breath of His mouth and bring to an end
by the appearance of His coming; 9
that is, the one whose coming is in accord with the activity of Satan, with all power and false signs and wonders, 10 and with all the deception of wickedness for those who perish, because they did not accept the love of the truth so as to be saved.