The Bible verse Revelation 7:14-17 from the King James Version (KJV) reads as follows:

"And I said unto him, Sir, thou knowest. And he said to me, These are they which came out of great tribulation, and have washed their robes, and made them white in the blood of the Lamb. Therefore are they before the throne of God, and serve him day and night in his temple: and he that sitteth on the throne shall dwell among them. They shall hunger no more, neither thirst any more; neither shall the sun light on them, nor any heat. For the Lamb which is in the midst of the throne shall feed them, and shall lead them unto living fountains of waters: and God shall wipe away all tears from their eyes."

This passage is part of the book of Revelation, which is the last book in the New Testament and is attributed to the apostle John. This book is filled with apocalyptic visions and prophecies, and it is often interpreted as a book that speaks of the end times and the ultimate victory of good over evil.

In this particular passage, John is having a vision of a great multitude of people standing before the throne of God. These people are said to have come out of "great tribulation," which means they have endured great suffering or hardship in their lives. Despite their struggles, they have been purified and made clean by the blood of the Lamb, which is a reference to Jesus Christ and his sacrifice on the cross.

The themes of suffering, purification, and redemption are central to this passage. The idea that those who have endured great tribulation will be rewarded with eternal salvation is a common theme in the Bible, and it reflects the Christian belief in the ultimate victory of good over evil. The image of being made clean by the blood of the Lamb is also significant, as it emphasizes the role of Jesus Christ as the savior and redeemer of humanity.

The passage also paints a vivid picture of the joys of heaven. Those who have been purified by the blood of the Lamb will serve God in his temple, and they will no longer hunger, thirst, or suffer from the heat of the sun. The Lamb, who is in the midst of the throne, will provide for their needs and lead them to living fountains of water. This imagery of abundance and comfort stands in stark contrast to the suffering that the people have endured on earth.

The symbolism in this passage is rich and multi-layered. The great multitude of people from every nation, tribe, and language standing before the throne of God represents the universal nature of salvation and redemption. It emphasizes the idea that no one is beyond the reach of God's love and grace. The image of God wiping away all tears from their eyes speaks to the idea of comfort and healing, and it suggests that all the pain and suffering of the past will be erased in the presence of God.

Overall, Revelation 7:14-17 is a powerful and evocative passage that speaks to the enduring Christian belief in the ultimate triumph of good over evil and the promise of eternal salvation for those who have endured suffering and hardship. It offers hope and comfort to those who are going through difficult times and serves as a reminder of the ultimate reward that awaits those who remain faithful to God.