"Evangelical
Christianity—like all branches of the historic church—maintains a tension
between the "already" and the "not yet" of this kingdom.
That tension seeks to avoid bringing the kingdom too near (in utopianism or
political gospels) or keeping it too far (in prophecy-chart fixations or
withdrawal from society). From the apostolic age to the digital era, the
"already-not yet" tension has proven difficult to understand. But
it's really no more complicated than reconciling Jesus' declaration that the
"kingdom of God is in your midst" with the fact that two millennia
have passed with swords still used for everything but plowshares. The
difference between what's "already" and what's "not yet" is
summed up in the question, "Where is Jesus ruling now, and how?" The
kingdom comes in two stages, because King Jesus himself does."
--Russell Moore