Been waiting since 1969 which is a very long time after our Lord ascended to heaven. He said he would return in His generation but did not and that is why people were mocking when is He coming back at that time and even now two millennia later!
Matthew 16:27-28,
Mark 9:1,
Matthew 24:33-34
I see you quote the pseudonymous author of 2 Peter - writing decades after the crucifixion, who was obviously acutely aware of the problem of Jesus not fulfilling prophecy and returning in His generation like He said He would, so he helpfully offered an explanation:
Above all, you must understand that in the last days scoffers will come, scoffing and following their own evil desires. They will say, “Where is this ‘coming’ he promised? Ever since our ancestors died, everything goes on as it has since the beginning of creation.”… But do not forget this one thing, dear friends: With the Lord a day is like a thousand years, and a thousand years are like a day. The Lord is not slow in keeping his promise, as some understand slowness. Instead he is patient with you, not wanting anyone to perish, but everyone to come to repentance.
2 Peter 3:3-4, 8-9
Notice he meant in
his time when he referenced the last days. He did not mean 2000 years into the future. How could he have? No one goes around currently talking about what will happen in the year 4019AD.
You are greatly mistaken in that in Matt 16:27-28, and Mark 9:1 is NOT referring to the "rapture" of the Church or the "second coming" of Jesus, it is referring to Jesus being "Transfigured" upon the Mount of transfiguration. Peter, James, and John were there to witness it first hand.
Mat 17:1 And after six days Jesus taketh Peter, James, and John his brother, and bringeth them up into an high mountain apart,
Mat 17:2 And was transfigured before them: and his face did shine as the sun, and his raiment was white as the light.
Mar 9:2 And after six days Jesus taketh with him Peter, and James, and John, and leadeth them up into an high mountain apart by themselves: and he was transfigured before them.
Mar 9:3 And his raiment became shining, exceeding white as snow; so as no fuller on earth can white them.
Mar 9:4 And there appeared unto them Elias with Moses: and they were talking with Jesus.
Mar 9:5 And Peter answered and said to Jesus, Master, it is good for us to be here: and let us make three tabernacles; one for thee, and one for Moses, and one for Elias.
2Pe 1:16 For we have not followed cunningly devised fables, when
we made known unto you the power and coming of our Lord Jesus Christ, but were eyewitnesses of his majesty.
2Pe 1:17 For he received from God the Father honour and glory, when there came such a voice to him from the excellent glory, This is my beloved Son, in whom I am well pleased.
2Pe 1:18 And
this voice which came from heaven we heard, when we were with him in the holy mount.
Matt 24:33-34 Has nothing to do with the "rapture" of Church as there will be no signs that foretell that event. The greatest sign of all concerning the "second coming" of Jesus is the "rapture" of the Church.