The believers, in the early days of the Church,
had little knowledge of the coming of the Lord,
the end of the world, or the ending of history.

They didn't pay attention to whether they had
been here forever or would go on forever.
One day the disciples asked Jesus
". . .Tell us,
when shall these things be? And what shall be
the sign of thy coming, and of the end of the
age?" Matthew 24:3

But they were conscious that existence on
earth and even existence of earth itself was
a passing thing and would end someday.