Israel was a chosen race, called by God. There were a people with uncommon grace. But this covenant was dependent on being obedient.
After generations of idolatry and spiritual infidelity, God had enough. He thundered seventy years of Babylonian captivity for his erring children.
God thought it, Jeremiah said it and that should have settled it.
No so fast, for the political prophet Hannaniah countered the prophecy: the merciful God will only allow two years of captivity
A God of love or a Deity of doom, seventy years or two to calm their fears?
They believed Hannaniah yet a generation died pining in exile. They that despise the covenant lose all claims to the Grace they defy.