Revelation 6:1 "And I saw when the Lamb opened one of the seals, and I heard, as it were the noise of thunder, one of the four beasts saying, Come and see. 2 And I saw, and behold a white horse: and he that sat on him had a bow; and a crown was given unto him: and he went forth conquering, and to conquer. 3 And when he had opened the second seal, I heard the second beast say, Come and see. 4 And there went out another horse that was red: 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. 5 And when he had opened the third seal, I heard the third beast say, Come and see. And I beheld, and lo a black horse; 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. 7 And when he had opened the fourth seal, I heard the voice of the fourth beast say, Come and see. 8 And I looked, and behold a pale horse: 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."
Seals one, two, three and four are opened.
6:1 - Each time a seal opens an event takes place on earth. Revelation 6-19 records the Tribulation, which is also called the time of Jacob's trouble(Daniel 12, Jeremiah 30:7) and Daniel's Seventieth Week (Daniel 9). The Church is already raptured before the Tribulation. Most likely the first beast is the lion (Revelation 4:7).
6:2 - This rider is connected with Satan and is not Jesus Christ. This rider has a bow and one crown, while Jesus has a sword and many crowns (Revelation 19:12,15). Jesus is followed by the armies of God, while this rider is followed by Death and Hell (Revelation 19:14). Keep in mind that Satan has always imitated God.
6:3 - The calf is the second beast (Revelation 4:7).
6:4 - Notice that bloodshed follows the white horse rider proving that it is not Jesus Christ. There will be no peace until Jesus Christ comes to reign on this earth.
6:5 - The man is the third beast to open the third seal. Balances are used to measure the weight of food. Notice that famine follows.
6:6 - The food is measured out because it will be scarce in the Tribulation (Ezekiel 4:17). The oil and wine may show inflation (Job 24:11, Hosea 12:1).
6:7 - The eagle is the fourth beast.
6:8 - Death here is an angel that has the job to kill and Hell followed with him. Some say that things from Hell may be released at this time in the Tribulation. (Isaiah 28:15, Hebrews 2:14, Revelation 9:11, 2 Thes. 2:3, Jeremiah 14:12) The last part of the verse may show that the animals on the earth go mad and help kill.
Revelation 6:9 "And when he had opened the fifth seal, I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held: 10 And they cried with a loud voice, saying, How long, O Lord, holy and true, dost thou not judge and avenge our blood on them that dwell on the earth? 11 And white robes were given unto every one of them; and it was said unto them, that they should rest yet for a little season, until their fellowservants also and their brethren, that should be killed as they were, should be fulfilled. 12 And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood; 13 And the stars of heaven fell unto the earth, even as a fig tree casteth her untimely figs, when she is shaken of a mighty wind."
Seals five and six open.
6:9 - The altar is probably the brazen altar of sacrifice in verse 11 (Leviticus 1:4, Nehemiah 11:1, Isaiah 6:13). Some say it may be the altar of incense in Revelation 8:3,5. The people here are killed by getting their heads cut off (Revelation 11:9, 20:4).
6:10 - Cross references: Luke 18:7, Deut. 32:43. During the Tribulation the Antichrist will drink the blood of the Martyred, just like the Catholic Mass professes that they drink Jesus' literal blood (Psalms 16:4, Numbers 25:2). Notice the little "rock" in Deut. 32:31, Jesus is the Rock and Peter is the little rock that the Catholic church follows.
6:11 - Man has a body, soul and spirit (1 Thes. 5:23). Notice that a soul has a bodily shape that can wear a robe. Cross reference: Revelation 14:13
6:12-13 - These are the events that happen towards the end of the Tribulation before the Tribulation Rapture (Matthew 24:29, Luke 21:25, Mark 13:24-26, Acts 2:20). Many people are in error when they think these events will happen at the end of the Church Age. The stars in verse 13 are angels that come with the Dragon(Satan) (Revelation 1:20, 12:4).
Revelation 6:14 "And the heaven departed as a scroll when it is rolled together; and every mountain and island were moved out of their places. 15 And the kings of the earth, and the great men, and the rich men, and the chief captains, and the mighty men, and every bondman, and every free man, hid themselves in the dens and in the rocks of the mountains; 16 And said to the mountains and rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb: 17 For the great day of his wrath is come; and who shall be able to stand?"
First account of the ending of the Tribulation period.
6:14 - Cross reference: Revelation 16:20
6:15 - Notice there are still slaves even in the Tribulation. Cross reference: Isaiah 24:21
6:16 - Notice that this is not the First Coming where Jesus died on the cross, rather the Second Coming when He comes in wrath.
6:17 - Like the Gospels give four accounts of the First Advent, Revelation gives four accounts of the Second Advent with the seals, trumpets, vials and activities of the Antichrist. So that is why you will see the Tribulation end throughout the book of Revelation.