What does Revelation 3:12 mean?
In this verse Jesus promises to make "the conqueror" a pillar in God's temple. The Greek word nikōn refers to someone who overcomes or obtains victory.It's interesting to note that the ancient city of Philadelphia was vulnerable to earthquakes that collapsed buildings. By contrast, God is suggesting that nothing could cause the conquering believers in Philadelphia to tremble and fall. They would stand tall like firm columns in God's temple, a reference to heaven. When an earthquake struck Philadelphia, the residents left the city in search of a safe place, but the Christian overcomers would remain safe forever in heaven.
Jesus also promised to inscribe on these overcomers the name of His Father, the name of the New Jerusalem, and Jesus' own name. The New Jerusalem will descend from heaven when Jesus establishes His royal residence on earth (Revelation 21:9–27). Hebrews 13:14 points out that believers do not have a permanent residence on earth, but we look forward to living in a permanent one. The permanent city is the New Jerusalem. Possessing the name of our heavenly Father, the name of the New Jerusalem, and the new name of Jesus suggests that believers will receive honors that abide eternally.
Revelation 3:7–13 contains Jesus' letter to the church at Philadelphia. Philadelphia, was a center for exporting the Greek language and culture into the interior of Asia Minor. Thus, it had a secular missionary calling. Just as the city had an open door to the interior, so the church had an open door to spread the gospel. Jesus commends the church in verse 10 and promises to keep it from the tribulation period. He also instructs the church to retain the truth and promises each conqueror special recognition in the New Jerusalem. Smyrna and Philadelphia are the only churches in Revelation not to receive any particular criticism. The church at Philadelphia's characteristics are similar to those of the Church in the 19th and 20th centuries that was a period of frequent revivals and missionary activity.
These final letters symbolize Church history from AD 1500 to the Rapture, the event that transports the Church from earth to be with Jesus. Sardis had a good reputation, but it was actually spiritually dead. Philadelphia had a good opportunity to spread the gospel, and it had kept Jesus' word and had remained loyal to Him. As such, Jesus promises to reward this church's conquerors. Laodicea was proud of its wealth, but was spiritually lukewarm, a characteristic that Jesus detests. He promises to fellowship with anyone in the church who would heed His voice and welcome Him. Laodicea is the only church given no praise by Christ.