What does the Bible say about the things that cannot be shaken?

According to Hebrews 12:26-27, everything created has been touched by sin and will ultimately be shaken and removed. This includes earthly relationships, achievements, and even creation itself, which will be destroyed by fire. However, the things that cannot be shaken are those established by God through Christ's incarnation, particularly His eternal covenant of grace and the salvation He accomplished. These blessings provide stability in an unstable world, ensuring that God's promises and the work of salvation through Christ will endure forever.