How do we know that we will live again after death?

Job's inquiry in Job 14:14, 'If a man die, shall he live again?' is addressed through the resurrection of Jesus Christ. In Him, believers are assured of eternal life; His victory over death confirms our hope. The Apostle Paul expands on this in 1 Corinthians 15, asserting that Christ's resurrection guarantees that all in Him will be raised. The believer's soul departs to be with the Lord, teaching that while the body rests, the spirit lives on eternally. Hence, our assurance of life after death rests entirely in our union with Christ.