The fourth seal opened
Rev 6:7 And when he had opened the fourth seal, I heard the voice of the fourth beast say, Come and see.
Each of the angelic beings have spoken, when Jesus opened a seal. Let me speak what I see in this section. Satan is a liar and takes things that are good and makes them bad, by using them. The first seal of the coming antichrist king, was spoken of by the creature with the lions head, the king of the beasts. The second seal, was the servant of the antichrist who was sent forth to take away peace and to cause war. This seal spoken of by the angel with a calves head, represented an ox, or a servant. The third seal bringing famine, was introduced by the angel with the face of a man. Six is the number of man and it would represent the number 666, that had to be taken, in order to buy or to sell. Now the forth seal is opened and announced by the angel with the head of an eagle, a majestic heavenly bird, but here it is a bird of prey.
Mat 24:28 For wheresoever the carcase is, there will the eagles be gathered together.
Death and hell would follow;
Rev 6:8 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.
A pale horse representing death and for those not in Jesus, hell following. Now that is not a popular subject, but hell is a real place of torment for sinners.
Luke 12:5 But I will forewarn you whom ye shall fear: Fear him, which after he hath killed hath power to cast into hell; yea, I say unto you, Fear him.
One-fourth of the earths people will be killed in this time of tribulation before God pours out his wrath. How would they die? Killed by the sword, by hunger and starvation, by death:
Luke 21:26 Men's hearts failing them for fear, and for looking after those things which are coming on the earth: for the powers of heaven shall be shaken.
Also killed by the beasts of the earth. They were a cursed people.
Deu 28:26 And thy carcase shall be meat unto all fowls of the air, and unto the beasts of the earth, and no man shall fray them away.
This tribulation is from satan and his anti-christ. Remember God knows these things will happen and he has placed limits upon them.
Mat 24:22 And except those days should be shortened, there should no flesh be saved: but for the elect's sake those days shall be shortened