"The Horseman" is the spiritual image of Jesus Christ, whose teaching, exposing, striking down the lie, the evil of sin, marches victoriously in the world, is embodied in his followers, in the best sons of humanity-the righteous, regally establishing the kingdom of God's Will in the nations.
Negative Meaning.
"Horseman" is a symbol of the rulers of the sinful ruling spiritual, ideological, political, religious systems of the world, "sitting", "seated" on those whom they rule.
"Horseman" is also a symbol of the militant, unholy political, religious and other figures of the sinful world and the violent structures of their sinful power.