Both the time element and the significance of the Great White Throne has been lost on most of 'Christianity' because it refuses to keep God's Holy Days.
At God's command, the white horse and its rider ride over the earth 'conquering and to conquer.' It is a precursor of the destruction that is wrought by its fellows.
Persecution and martyrdom are not popular topics among Christians, but they are facts. The fifth seal shows the cry of the martyrs and God's response.
The Hebrews perceived color differently than we do, assigning symbolic significance to a number of different colors as they associate with concrete objects.
As future priests, we are going to be given rigorous, hands-on jobs to teach people righteousness and holiness, distinguishing between the sacred and profane.
Cultural compromise, such as found in Pergamos, brings judgment from Jesus. To those who refuse to compromise their convictions, Christ promises eternal life.
'Righteous' Lot represents those who become accustomed to the sin around them, progressively searing their consciences, similar to spiritual neuropathy.