Revelation 18 "It's the End of the World as We Know It"

The church is called to come out of "Babylon" because it is being judged.  The kings and all merchants of the world mourn at Babylon's destruction.   How about the church? Will we mourn her destruction or will we rejoice with heaven?  Are we so in love with the world that we seek its perpetuation?  Are we like Lot's wife?