The concept of "Seven Kings" appears in the apocalyptic literature of the Bible, specifically in the Book of Revelation. This imagery is rich with symbolic meaning and has been the subject of much theological interpretation and debate throughout Christian history.

Revelation 17:9-11 :
"This calls for a mind with wisdom. The seven heads are seven mountains on which the woman sits. They are also seven kings. Five have fallen, one is, the other has not yet come; but when he does come, he must remain for only a little while. The beast that was, and now is not, is an eighth king, who belongs to the other seven and is going into destruction."

Interpretation and Symbolism:

1. Seven Heads and Seven Mountains:
The passage begins by identifying the seven heads as seven mountains, which many scholars and theologians have traditionally associated with the city of Rome, known for its seven hills. This connection is often used to suggest that the "woman" in the vision represents a city or a political power, possibly Rome itself during the time of John's writing.

2. Seven Kings:
The seven kings are interpreted as a sequence of rulers or empires. The text states that "five have fallen, one is, the other has not yet come." This has led to various interpretations regarding which historical or future figures these kings represent. Some interpretations suggest that these kings symbolize a succession of world empires, while others see them as specific Roman emperors or other significant leaders throughout history.

3. The Eighth King:
The passage also mentions an eighth king, who is described as belonging to the seven and is destined for destruction. This figure is often associated with the Antichrist or a final world ruler who embodies opposition to God and His people. The reference to the beast that "was, and now is not" suggests a resurrection or return of a previous power or ruler, adding to the complexity of the interpretation.

4. Historical and Futuristic Views:
Conservative Christian interpretations often view these kings through a dual lens of historical and futuristic prophecy. Historically, they may represent a series of oppressive regimes or leaders that have opposed God's people. Futuristically, they are seen as a prophetic outline of future events leading up to the end times, with the final king being a key figure in the eschatological narrative.

5. Theological Implications:
The imagery of the seven kings serves as a reminder of the transient nature of earthly power and the ultimate sovereignty of God. It underscores the theme of divine judgment against those who oppose God's will and the eventual triumph of His kingdom.

The passage in Revelation 17 is a profound example of apocalyptic literature, using vivid imagery and symbolism to convey deep spiritual truths. The interpretation of the seven kings continues to be a topic of study and reflection within the Christian community, inviting believers to seek wisdom and understanding in the unfolding of God's redemptive plan.