Revelation 3:11: Behold, I come quickly: hold that fast which thou hast, that no man take thy crown.

The words I come quickly mean that Christ would come immediately in the midst of the faithful Philadelphian saints¹ as the Great Apostasy engulfed them in their hour of temptation.² Christ admonished them to hold fast to the crown of eternal life that was promised to them through the more sure word of prophecy.³ The Philadelphians had to hold fast because they could still lose their guarantee of eternal life if they committed the unpardonable sin.⁴ This sin occurs, for example, when people apostatize from the true church after they are once enlightened by the Holy Ghost.⁵ Christ warned the faithful Philadelphians against this danger when he told them to hold that fast which thou hast, that no man take thy crown.⁶

Revelation 3:12: Him that overcometh will I make a pillar in the temple of my God, and he shall go no more out: and I will write upon him the name of my God, and the name of the city of my God, which is new Jerusalem, which cometh down out of heaven from my God: and I will write upon him my new name.

Each saint that overcomes the world by enduring to the end⁷ becomes a symbolic pillar in the temple of my God.⁸ Symbolic pillars in the heavenly temple have their earthly likeness⁹ in two large bronze pillars at the exterior of Solomon's temple called Jachin (JAY-kin) and Boaz (BOW-az).¹⁰ Ironically, after centuries of time and multiple earthquakes, a single pillar still stands erect among Philadelphia's ancient ruins as a continuing reminder of John's message.¹¹

Exalted saints become strong pillars that support and strengthen the heavenly temple,¹² even though they may have only a little strength in this life.¹³ Their glory will also add beauty to the architecture of the heavenly temple.¹⁴ All exalted saints¹⁵ will give their strength and beauty¹⁶ to the living temple¹⁷ in the new Jerusalem at the end of the earth.¹⁸ They will be a permanent part of the celestial kingdom forever¹⁹ and shall go no more out.²⁰

Christ will symbolically write three new names upon exalted saints when they overcome.²¹ These names express their new and glorified condition.²² The trilogy of names include the name of God, the name of new Jerusalem, and the new name of Jesus Christ.²³ Exalted saints will bear the name of God²⁴ because they belong to him²⁵ and because they will be like him.²⁶ They are numbered among the 144,000 members of the Church of the Firstborn²⁷ that have the seal of God in their forehead.²⁸ The name of the celestial city of new Jerusalem²⁹ is written on exalted saints because they are her citizens.³⁰ Finally, Christ writes upon the exalted saints his own new name that "no man [knows], but he himself."³¹ The new name of Christ symbolizes his own exalted status.³² Exalted saints receive Christ's new name because they are his bride³³ and they become joint heirs with him³⁴ in power, might, glory, and dominion.³⁵

Revelation 3:13: He that hath an ear, let him hear what the Spirit saith unto the churches.

The admonition in this verse is included in every letter sent to the seven churches to teach by repetition³⁶ and to encourage their collective attention to the messages in all seven letters.³⁷