The Horseman Of The First Seal
The first of The Seven Seals is a rider on a white horse. Who opens the seal? Jesus Christ, The Lamb of God (Revelation 6:1). The Scripture account plainly describes Jesus Christ as opening the seals, not participating as one of those horsemen!
What does that first horseman do? In succession over the second, third, fourth and fifth seals, he causes war, famine, pestilence, and martyrdom of God's saints! From your own Bible -
"I watched as The Lamb opened the first of the seven seals. Then I heard one of the four living creatures say in a voice like thunder, "Come!" I looked, and there before me was a white horse! Its rider held a bow, and he was given a crown, and he rode out as a conqueror bent on conquest."
"When The Lamb opened the second seal, I heard the second living creature say, "Come!" Then another horse came out, a fiery red one. Its rider was given power to take peace from the earth and to make men slay each other. To him was given a large sword."
"When The Lamb opened the third seal, I heard the third living creature say, "Come!" I looked, and there before me was a black horse! Its rider was holding a pair of scales in his hand. Then I heard what sounded like a voice among the four living creatures, saying, "A quart of wheat for a day's wages, and three quarts of barley for a day's wages, and do not damage the oil and the wine!"
"When The Lamb opened the fourth seal, I heard the voice of the fourth living creature say, "Come!" I looked, and there before me was a pale horse! Its rider was named Death, and Hades was following close behind him. They were given power over a fourth of the earth to kill by sword, famine and plague, and by the wild beasts of the earth."
"When He opened the fifth seal, I saw under the altar the souls of those who had been slain because of The Word of God and the testimony they had maintained [see What Is A Saint?]. They called out in a loud voice, "How long, Sovereign Lord, holy and true, until you judge the inhabitants of the earth and avenge our blood?" Then each of them was given a white robe, and they were told to wait a little longer, until the number of their fellow servants and brothers who were to be killed as they had been was completed." (Revelation 6:1-11)
The Rider Who Is Called "Faithful And True"
The later white horse is ridden by Jesus Christ (see The Return Of Jesus Christ), as made very clear in these words of Prophecy -
"I saw heaven standing open and there before me was a white horse, whose rider is called Faithful and True. With justice He judges and makes war. His eyes are like blazing fire, and on His head are many crowns. He has a name written on Him that no one knows but He Himself. He is dressed in a robe dipped in blood, and His Name is The Word of God. The armies of heaven were following Him, riding on white horses and dressed in fine linen, white and clean. Out of His mouth comes a sharp sword with which to strike down the nations. He will rule them with an iron scepter. He treads the winepress of the fury of the wrath of God Almighty. On His robe and on His thigh He has this name written: KING of kings and LORD of lords." (Revelation 19:11-16)
Fact Finder: How did Jesus Christ describe world conditions at the time of His Second Coming?
Note: This "Olivet Prophecy" took place atop The Mount Of Olives (Matthew 24:3), where His Ascension occurred, and where His Return will also occur (Acts 1:9,12; Zechariah 14:4)