How do we know that Jesus is alive forevermore?

The affirmation that Jesus is alive forevermore comes directly from His resurrection, as recorded in Revelation 1:18 where He states, 'I am He that liveth and was dead; and, behold, I am alive forevermore.' This truth undergirds Christian hope and assurance of salvation. The Apostle Paul articulates in 1 Corinthians 15:20 that Christ has been raised from the dead, becoming the firstfruits of those who have fallen asleep. His resurrection is a promise of our own eternal life, rooted in the historical event that demonstrates His power over death.