The book of Revelation is one of the most important book of the Bible, is the end and very controversial because a lot of interpretations that men has been given it. Those interpretations are caused for what this book has been written in symbols that not anybody can decode. The symbols that you can find there speaks about bests, seals, prophesy, angels bringing messages about destruction, judge and horses and their riders and i wish to tell you about this last one.
In Revelations chapter 6 verse 1-8 we can find the 4 seals that speaks about 4 horses and their respective riders. The first one is the white horse  he that sat on him had a bow; and a crown was given unto him: and he went forth conquering, and to conquer (Rev. 6:2) that mean an Antichrist, and the power of the Catholic church, as well Roma. Second one is the red horse: and power was given to him that sat thereon to take peace from the earth, and that they should kill one another: and there was given unto him a great sword. (Rev. 6:4) that mean the blood that has been spilled trough the ages by the Catholic church, do you remember the inquisition? or the christian’s persecution after Christ there spilled a lot of innocent blood.The third horse is black: and he that sat on him had a pair of balances in his hand.6 And I heard a voice in the midst of the four beasts say, A measure of wheat for a penny, and three measures of barley for a penny; and see thou hurt not the oil and the wine. (Rev.6:5-6) that mean the same rider but with another appearance and his balance that he bring mean a commercial spirit, do you remember the indulgences when the people had to pay for their souls to not be sent to hell, at the present time you mustn’t pay this kind of tax but its something almost equal. And the last one horse is yellow, its the mix of all previous: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.(Rev. 6:8) this is very obviously mean death, sufferings, natural disasters, destruction and more ......