When the roots are healthy, trees can withstand a great
deal. In fact, they're remarkably resilient. If the roots are bad,
however, the tree is lost. Unhealthy roots can never produce a healthy
tree. That's essentially the reality John uncovers in Revelation 18. Like
a detective getting to the bottom of a case, John is given insight by
God into the root causes of Jerusalem's "many crimes." What he sees
is that the temple has become a bad root; the source of greed,
corruption, and excess. When the roots are bad, God isn't content to
trim the tree. The root needs to be removed and replaced. In the same
way, through Jesus, God makes it possible for the "roots" of sin in us to
be completely removed and replaced with the presence of Jesus
Himself, the faithful root who brings us renewal within.