Hebrews reminds the Hebrews of the earthly ministry of Christ and of the witness of the Holy Ghost working in the apostles. It warns them not to neglect the salvation that was confirmed by them with signs and wonders. Hebrews also continually reminds them not to make the same mistake their fathers made with Moses when they did not enter their land because of unbelief. It tells them that if they fall away, it will be impossible to renew them again unto repentance it will be impossible for them to enter into the kingdom. This is their last chance.