What is the difference between the Rapture
and the Second Coming of Christ?

The Rapture is a special event where the
Lord delivers the Church from the Tribulation.
It comes before the Tribulation and takes the
Christians out of this world before the seven
year period of the wrath of God. Jesus doesn't
come all the way to earth but meets them in
the air (1 Thessalonians 4"17).

At the Second Coming, He comes with the
Church to the earth. He returns with an army
from Heaven to conquer the world. (Revelation
19:11-16) This army is the Church that was
Raptured.