I tell you the truth, those who listen to my message and believe in God who sent me have eternal life. They will never be condemned for their sins, but they have already passed from death into life. [John 5:24 (NLT)]
Death is the consequence of sin—of living in a fallen world—but Jesus promised that all believers have eternal life. In the Apostles’ Creed, we affirm our belief in this “life everlasting.” Eternal life, life in perpetuity, life forever and ever: how can that be? For centuries thousands of inventors have attempted to make a perpetual motion machine that will run indefinitely with no input of energy and have failed every time. Apparently perpetual motion violates the first and second laws of thermodynamics. If perpetual motion is an impossibility, perpetual life seems improbable, as well. It seems to violate all sorts of natural laws let alone human logic. God, however, isn’t limited by thermodynamics, any other law of nature, or human understanding; after all, He’s the author of them all!
The Greek word translated as “eternal” is aiónios which means eternal, forever, everlasting or perpetual. When combined with the Greek zoe (meaning life), it focuses not just on quantity of time but also on the quality of that time! The eternal life promised in the gospel isn’t just about the number of years; it is about the fullness of that unending life. Independent of time as we know it, eternal life is not something for which we need to hope. Jesus didn’t promise eternal life at some point in the future. Using the present tense, He said that “anyone who believes has eternal life” [John 6:47] For Christians, eternal life starts when we first believe in Christ. It has begun!
When our heart stops beating, our brain ceases functioning, and life has ebbed out of our body, we won’t stop existing. We will, however, change form. The caterpillar that wriggles along leaves and branches with its sixteen legs looks nothing like the butterfly whose beautiful wings enable it to flit from flower to flower. Nevertheless, they are the same creature with the same DNA. It will be much like that for us when we leave this dimension and enter into the next. While our bodies as we knew them will cease to exist in this world, our spirit or soul will continue into the next and (unlike a butterfly) last forever!
As a believer who is closer to the end of her years than the beginning, I find comfort in knowing that Jesus has already made good on His promise of eternal life. It’s mine already! When the time comes for my last breath, it simply will be like going to sleep as a caterpillar and awakening as a perpetual butterfly.