The passage you shared is from the Book of Revelation, which is the last book of the New Testament. It is a highly symbolic and metaphorical book that describes the end of the world and the second coming of Jesus Christ.
In this particular passage, it describes Jesus riding on a white horse, which is a symbol of victory and purity. He is called "Faithful and True" and is described as judging and making war in righteousness. This is likely a reference to the final battle between good and evil, where Jesus will defeat Satan and his followers.
The description of Jesus having eyes like a flame of fire and a robe dipped in blood is also symbolic. The flame of fire represents his divine judgment, while the blood on his robe represents his sacrifice on the cross. The name "The Word of God" is a reference to Jesus being the embodiment of God's message to humanity.
The armies of heaven following Jesus on white horses represent the angels and saints who will fight alongside him in the final battle. The sharp sword coming from his mouth represents his power to defeat evil with his words. The phrase "he will rule them with a rod of iron" means that he will have complete authority over the nations.
Overall, this passage is a depiction of the final battle between good and evil, with Jesus leading the charge against Satan and his followers. It is a powerful and symbolic description of the end of the world and the triumph of good over evil.