Seventy years later

Jeremiah 29:10-14 - This is what the LORD says: "When seventy years are completed for Babylon, I will come to you and fulfill my gracious promise to bring you back to this place. For I know the plans I have for you," declares the LORD, "plans to prosper you and not to harm you, plans to give you hope and a future. Then you will call upon me and come and pray to me, and I will listen to you. You will seek me and find me when you seek me with all your heart. I will be found by you," declares the LORD, "and will bring you back from captivity. I will gather you from all the nations and places where I have banished you," declares the LORD, "and will bring you back to the place from which I carried you into exile."

I wonder (but not very much) if there were some exiles who, upon hearing these words, said, "Yeah, right!" All but the very young would probably die in Babylon, so they knew the words of this promise were for the next generations. Even some of the young ones would be in their "retirement" years by the time they would return. Yet their must have been a few such people, because we know that later, when they did return, some wept when the foundations of the new Temple were laid as they remembered what the previous Temple had looked like.

I wonder how often those who did believe the promise told their descendants about it.