We Christians may tend to think that there are other “faith systems” out there, other than biblical Christianity, that, while they may miss out on the whole truth, they still contain a lot of good in them, and maybe God will sorta smile and wink at their adherents at the end of the day, because after all, they were just trying to live a good life, and honor God, and what’s so bad about that? Maybe you have friends who are, in general, upstanding and moral people. And maybe you might, sometimes, possibly be tempted with the idea that you don’t really need to tell them about the Gospel–Because after all, you think, They might not know the full truth about Jesus, but they’re such good people! I’m sure they’ll be fine. The Gospel is “good news” for really bad sinners, not good folks like these… right?
Not according to Jesus. According to Jesus, manmade religion (or “faith systems,” or lifestyles, or worldviews) that purport to show God great honor, while denying the necessity of the cross and resurrection of Jesus–those aren’t some kind of lesser piety. They’re not “Christianity Lite.”
The Gospel is the good news, that Jesus came to die for sinners like you and me–so that we could die to our old life (which was really death) and receive His life. Get the Gospel, and you get God’s life. Reject the Gospel, and whatever else you may have–however “good,” you’ll lose your life and miss out on God’s life.
This is serious business–which it would have to be, to make Jesus call one of His top three disciples “Satan.” So if Jesus takes it that seriously, maybe we ought to reconsider how we think about those other “faith systems” (really they should be called works systems, since they deny salvation by grace alone through faith alone). Trying to show God honor, while denying God’s plan (by which He was more incredibly honored than He could have ever been by any scheme moral man could have come up with!) is from Satan.