Why is Christ considered our life?

In Colossians 3:4, it states, 'When Christ, who is our life, shall appear.' This passage highlights that Christ is not just a part of our life but our very essence and being. Our spiritual life originates from Him, as He is the source of our justification and sanctification. The believer's identity is transformed through union with Christ, and this means that His righteousness covers us, removing condemnation and giving us hope for eternal life. Therefore, to say that Christ is our life is to acknowledge that our spiritual existence, our relationship with God, and our ultimate hope depend entirely on Him.