Of course it is to do with "heavenly Jerusalem." That is the place that He is preparing for His people now.
Hebrews 11:8-10 describes how our great father of the faith, the Patriarch, Abraham looked for that great heavenly city, saying, “By faith Abraham, when he was called to go out into a place which he should after receive for an inheritance, obeyed; and he went out, not knowing whither he went. By faith he sojourned in the land of promise, as in a strange country, dwelling in tabernacles with Isaac and Jacob, the heirs with him of the same promise: for he looked for a city which hath foundations, whose builder and maker is God.”
It would seem right to regard God's future inheritance for Israel as relating to the heavenly abode and the prepared city the New Jerusalem. The Patriarch’s earthly abode in Canaan is depicted here as a temporary sojourn and “a strange country.” This was not Abraham’s eternal abode or was it his true home. Like us, he looked for the New Jerusalem that would last forever. Man’s ultimate hope (whether Old Testament or New Testament) is when Jerusalem from above comes down to the earth to dwell forever.
Hebrews 11:13-16 says, specifically speaking of the great Old Testament champions of faith, “These all died in faith, not having received the promises, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth. For they that say such things declare plainly that they seek a country. And truly, if they had been mindful of that country from whence they came out, they might have had opportunity to have returned. But now they desire a better country, that is, an heavenly: wherefore God is not ashamed to be called their God: for he hath prepared for them a city.”
Here, in easily comprehensible language, we see the focus and overriding desire of these Old Testament heroes of the faith (nearly all of whom had accessed the old Jerusalem in their lifetime) revealed. They plainly desired a “prepared” heavenly city.
The Old Testament saints, like those in the New Testament, looked forth to a “prepared” eternal heavenly city, not a physical temporal earthly one. Their eyes were therefore not below but above. Scripture plainly tells us that that “place” is called the New Jerusalem – the eternal home of the beloved. The Premillennialist that looks for old Jerusalem at the second coming is evidently focused upon the wrong city.
That “place,” which Christ is preparing us, and for which His people are patiently waiting, is identified as an actual city in Hebrews 13:14. Notwithstanding, it is not a physical temporal earthly city sitting in the center of natural Israel, but rather a heavenly eternal city. The passage says, “for here (that is on this earth) have we no continuing city, but we seek one to come.” That city is the New Jerusalem, which Christ is presently preparing. Earthly Jerusalem is clearly with us now, whereas the New Jerusalem in all its glory is still to come!!!
During our Lord’s earthly ministry He made a very significant statement about the heavenly abode, which many modern-day eschatology students tend to overlook. Jesus said, in John 14:1-3, “Let not your heart be troubled: ye believe in God, believe also in me. In my Father's house are many mansions: if it were not so, I would have told you. I go to prepare a place for you. And if I go and prepare a place for you, I will come again, and receive you unto myself; that where I am, there ye may be also.”
What is that place that Jesus is preparing? It is the new Jerusalem. The new Jerusalem comes down from heaven when Jesus comes. It is going to be located on the new earth.
Proof that the prepared New Jerusalem is coming down to the new earth is found in Revelation 21:1-4. It declares, “And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea. And I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband. And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God.”
This city is the only “prepared place” alluded to in the whole of the New Testament. This city, which appears with Christ at His coming, is undoubtedly a heavenly “place” and is the single focus of every true saint of God – the place of eternal peace and rest from sin, the effects of sin (including death), and all sinners forever.