OK Mark 11:12-25 Jesus curses the fig tree and it dies. I believe this is a foreshadowing of the death of Israel. 70 A.D. they were scattered all over the world. Then in Mark 13:28-31 Jesus tells the parable of the Fig Tree the rebirth of Israel this occurred in 1948. I believe this is the final warning sign of Jesus’ return. He said the generation that saw these sign would see his second coming.
Now according to Psalm 90:10
10 The days of our years are threescore years and ten; and if by reason of strength they be fourscore years, yet is their strength labour and sorrow; for it is soon cut off, and we fly away.
Therefore a generation is 80 years max. so 1948 + 80 = 2028
Minus 7 years for the Tribulation means 2021 Thus Time is growing very short for people to accept Jesus and make it to heaven! So by Jesus’ words the Tribulation will begin before the end of 2021!