In This Generation

I think when Christ is speaking of that generation, he was speaking of the descendant of Adam. Not born again. Flesh and Blood will not inherit the kingdom of God.  In Adam all die, In Christ all live.

Mat 12:34  O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.

35  A good man out of the good treasure of the heart bringeth forth good things: and an evil man out of the evil treasure bringeth forth evil things.

Mat 23:33-36 in context it is Plain that Jesus was speaking of the children of the serpent.)

Ezek 12:28  "Therefore say to them, 'Thus says the Lord GOD, "None of My words will be delayed any longer. Whatever word I speak will be performed,"'" declares the Lord GOD.  

Heb 4:12  For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.

Mt 24:48 "But if that evil slave says in his heart, 'My master is not coming for a long time,'

49  and shall begin to beat his fellow slaves and eat and drink with drunkards;

50  the master of that slave will come on a day when he does not expect him and at an hour which he does not know,

51  and shall cut him in pieces and assign him a place with the hypocrites; weeping shall be there and the gnashing of teeth.

1 Th 5:2:For you yourselves know full well that the day of the Lord will come just like a thief in the night.

3  While they are saying, "Peace and safety!" then destruction will come upon them suddenly like birth pangs upon a woman with child; and they shall not escape.

4  But you, brethren, are not in darkness, that the day should overtake you like a thief;
Rev 3: 3  Go back to what you heard and believed at first; hold to it firmly and turn to me again. Unless you do, I will come upon you suddenly, as unexpected as a thief.

Remember, Jesus also said it was the "evil servant" who says "My Lord delayeth his coming" (Mt. 24:48-51).

(I believe that the Word Generation as it is use above, is referring to the sons of the serpent, or us before we were born again.  We are being made anew or regenerated by taking refuge in our Lord and walking after the Spirit.  Putting off the old man and putting on the new.  Where ever the old man is. Then we are in danger of judgment.)

Luke 17:37  And answering they said^ to Him, "Where, Lord?" And He said to them, "Where the body is, there also will the vultures be gathered."