Incidentally some Christadelphians read “this generation will not pass away until all these things occur” as meaning “this race of people will not pass away until all these things occur” referring to the Jews as a people now restored to Israel.
slimboyfat's comment above really got to me as a PIMO witness. The current generation teaching of the organization is bunk and makes no sense whats so ever. The Christadelphian view seems to correspond to another comment made by Jesus when he was on trial. When the high priest was trying to force Jesus' true identity the high priest convinced Jesus to say the following,"...From now on you will see the son of man sitting at the right hand of power and coming on the clouds of heaven." Since Jesus has not come back yet I understand this comment to mean that the Jews will still be around as a nation to see his his future return. The generation meaning has to be a group of people and not a time period.