So much truth in so few words.<quoted text>
Most importantly, IMO, is that these empty threats reveal the depth of the fear of the indoctrinated Christian, the fear of being found wanting by a judgmental deity.
It's impossible to have a deity that is both merciful and just. So believers often cling to mercy for themselves and judgment for everyone else.
They seem to forget that they get measured by the same scoop that they use to measure others, at least according to their own book.