Understanding the Book of Revelation

In this brief Bible Study Tim discusses how looking for repetition in the Scripture is a method to use in order to understand apocalyptic language.

What is talked about?
1) Who are the 24 elders.
2) In Rev. Chp 6 is the rider on the white horse the antichrist?

(This is not an in depth study but was simply something spoken in a Sunday School class at church.)