Insurance is an interesting thing! It is not something that you just automatically receive when you are born or buy a house or a car. There are steps you must take to qualify for it. After you have it, you must continue to maintain it and keep up on your premiums. The worst thing to hear is that your insurance policy has lapsed.
This is not an identical concept, but there are a few similarities. Eternal life is not something that you just automatically receive because you are alive. There are steps you must take to be qualified. Don’t misunderstand, these are not steps to “earn” eternal life, but steps established by God in order to secure His promise of eternal life (John 3:15-16; Matt. 19:16). After you have followed His steps to secure the promise, you must continue to “maintain good works” (Tit. 3:8, 14), “fight the good fight of faith” (1 Tim. 6:12), “make your call and election sure” (2 Pet. 1:10) and live a faithful life “in Christ” (1 John 5:11), in order to “lay hold on eternal life” (1 Tim. 6:12).
What would be the worst thing to hear about that on the day of judgment?