A common phrase originating in the English translation of
the Lord's Prayer, it's also used as
shorthand for "until the
kingdom of
Heaven should come." When used in an
expression like "I'm gonna
blast you to
kingdom come", it probably means that's how long it's going to take for the
pieces to come back down.
Also, the name of a comic book limited series written by Mark Waid, lavishly painted by Alex Ross and published by DC Comics in 1998. The story is set in the not-too-distant future of the DC universe, where Superman has been in retirement for twenty years and the children and grandchildren of the Golden Age superhumans have led society into near-anarchy. This is widely recognized as one of the best comic stories published in the last decade.