Ah, but we were given a fairly specific timeline. Trouble is ... that was 2000 years ago.
Matt 10:23: [Jesus said to his disciples] “When they persecute you in one town, flee to the next; for truly I tell you, you will not have gone through all the towns of Israel before the Son of Man comes.”
Matt 16:28: [Jesus said to the disciples] “Truly I tell you, there are some standing here who will not taste death before they see the Son of Man coming in his kingdom."
Mark 9:1: And he [Jesus] said to them [the disciples], "Truly I tell you, there are some standing here who will not taste death until they see that the kingdom of God has come with power."
Mark 13:30: [After detailing events up to end of world, Jesus says] “Truly I tell you, this generation will not pass away until all these things have taken place.”
Mark 14:62: Jesus said [to the high priest - died 1st cent. AD], "I am; and 'you will see the Son of Man seated at the right hand of the Power,' and 'coming with the clouds of heaven.'"
Rom 13:12: the night is far gone, the day is near. Let us then lay aside the works of darkness and put on the armor of light;
1 Cor 7:29: I mean, brothers and sisters, the appointed time has grown short; from now on, let even those who have wives be as though they had none,
1 Cor 7:31: For the present form of this world is passing away.
Phil 4:5: Let your gentleness be known to everyone. The Lord is near.
1 Thess 4:15: For this we declare to you by the word of the Lord, that we who are alive, who are left until the coming of the Lord, will by no means precede those who have died.
Hebrews 1:2: but in these last days he has spoken to us by a Son….
Hebews 10:37: For yet "in a very little while, the one who is coming will come and will not delay;”
James 5:8: You also must be patient. Strengthen your hearts, for the coming of the Lord is near.
1 Peter 1:20: He [Christ] was destined before the foundation of the world, but was revealed at the end of the ages for your sake.
1 Peter 4:7: The end of all things is near….
1 John 2:18: Children, it is the last hour! As you have heard that antichrist is coming, so now many antichrists have come. From this we know that it is the last hour.
Rev 1:1: The revelation [the apocalypse] of Jesus Christ, which God gave him to show his servants what must soon take place….
Rev 3:11: [Jesus said] “I am coming soon….”
Rev 22:6: And he said to me, "These words are trustworthy and true, for the Lord, the God of the spirits of the prophets, has sent his angel to show his servants what must soon take place."
Rev 22:20: [Jesus said] “Surely I am coming soon.”
Not only Jesus, but all of the early followers expected the Kingdom within their own lifetimes. Embarrassing, I know...