what does the bible say?
The English apocalypse comes from the Greek apokalypsis, which refers to “an uncovering” or "unveiling." This Greek word is used in Revelation 1:1, introducing the vision given to the apostle John by God. In a sense God "unveiled" to John what will occur in the future. One of the things God disclosed to John was that a triune series of judgments will occur at some point that will bring great destruction upon the world. These are described in Revelation 6—18 and consist of what are called the seal, trumpet, and bowl judgments (see also Matthew 24; Mark 13; Luke 21).
The Four Horsemen of the Apocalypse appear in Revelation 6 as part of the seal judgments that bring devastation upon the earth. The first horseman, riding a white horse, represents the Antichrist, who will initially conquer through deception and false peace (Revelation 6:1–2; Daniel 9:27). The second, on a red horse, symbolizes war and bloodshed as peace is taken from the earth (Revelation 6:3–4; Matthew 24:6–7). The third, on a black horse, brings severe famine, making basic necessities scarce and expensive (Revelation 6:5–6). The fourth, on a pale horse, represents widespread death through war, famine, disease, and wild beasts, claiming a quarter of the world’s population (Revelation 6:7–8; Matthew 24:21). Revelation is a message of hope for believers, assuring them that Jesus has taken God's wrath upon Himself, but it is also a message of warning for unbelievers. The Four Horsemen of the Apocalypse warn unbelievers of coming judgment, urging them to repent before it is too late.