In his letter to the Hebrews, the apostle Paul addressed his fellow believers as “holy brothers, partakers of the heavenly calling.” However, he also stated that God has subjected to Jesus “the inhabited earth to come.” (Heb. 2:3, 5; 3:1) In the Christian Greek Scriptures, the original word for “inhabited earth” always refers to earth populated by humans. Hence, “the inhabited earth to come” is the future system of things on earth under the rulership of Jesus Christ. Jesus will then fulfill God’s promise: “The righteous themselves will possess the earth, and they will reside forever upon it.”—Ps. 37:29.
The apostle Peter was also inspired to write about the future of mankind. He wrote: “The heavens and the earth that are now are stored up for fire and are being reserved to the day of judgment and of destruction of the ungodly men.” (2 Pet. 3:7) What will replace the governmental heavens and the wicked human society that are present now? (Read 2 Peter 3:13.) They will be replaced by “new heavens”—God’s Messianic Kingdom—and “a new earth”—a righteous human society of true worshippers.
The last book of the Bible stirs our hearts with its vision of mankind lifted to perfection. (Read Revelation 21:1-4.) This has been the hope of believing mankind ever since human perfection was lost in the garden of Eden. Upright people will live in Paradise on earth endlessly without aging. This hope is solidly based on both the Hebrew Scriptures and the Christian Greek Scriptures, and it continues to strengthen faithful servants of Jehovah to this day.—Rev. 22:1, 2.