How do we know the resurrection of believers is secure?

The security of believers' resurrection is guaranteed through the work of Christ, who intercedes for us as our advocate, akin to Michael's role in resisting the devil. Jude 9 exemplifies how Michael contends for the people of God against false accusations. This mirrors Christ's assurance in John 11:25-26, where He declares Himself the resurrection and the life. Believers, therefore, can confidently anticipate their resurrection, grounded in Christ's victory over sin and death, as they are united with Him and written in the Lamb’s Book of Life.