What does the Bible say about Jesus being the first and the last?

In Revelation 1:17-18, Jesus proclaims, 'I am the first and the last.' This declaration signifies not only His eternal existence but also His supreme authority over all things. He is the initiator of creation and the culmination of history, meaning that nothing happens outside His sovereign will. The phrase emphasizes that Christ is actively involved in every moment, guiding and sustaining His creation. Furthermore, Jesus' resurrection from the dead confirms His victory over death and hell, assuring believers of eternal life in Him.