en_tn_condensed/rev/19/11.md

Then I saw heaven open

This imagery is used to signify the beginning of a new vision. See how you translated this idea in Revelation 4:1, Revelation 11:19 and Revelation 15:5.

The one riding it

The rider is Jesus.

It is with justice that he judges and wages war

"He judges all people and wages war according to what is right"