18, 19. Explain how Paul’s second letter to Timothy and Peter’s first letter indicate that not all those who hope to live forever will be kings and priests with Christ in heaven. (Rev. 5:9, 10)

¹⁸ But do all those who accept Christ and hope to live forever receive this “holy calling” to incorruptible life in the heavens? Indicating that this special calling is meant for a limited number of ‘elect’ (Authorized Version) or “chosen ones,” Paul adds: “On this account I go on enduring all things for the sake of the chosen ones, that they too may obtain the salvation that is in union with Christ Jesus along with everlasting glory. Faithful is the saying: Certainly if we died together, we shall also live together; if we go on enduring, we shall also rule together as kings.”​—2 Tim. 2:10-12.

¹⁹ If all who are saved are called to “everlasting glory” in order to “rule together as kings” with Christ Jesus, over whom are they due to rule? And if all are to become “a royal priesthood,” on behalf of whom are they to act as royal priests?

22. For the 144,000, of what kind is their Bible-based hope?

²² For these 144,000 spirit-begotten, anointed Christians their Bible-based hope is a heavenly hope. After having part in “the first resurrection,” they “will be priests of God and of the Christ, and will rule as kings with him for the thousand years.”​—Rev. 20:6.