Why do so many believers of Christ think that if you don’t follow the Bible literally, you’re destined to go to hell?

They’ll tell you to not listen to secular music, to not smoke weed, to not fornicate (sex before marriage), to not enjoy anything worldly etc when I thought it was all simply about having faith, understanding you’re a sinner, that you will fall but you always get back up and that God is a forgiving God full of Grace (That doesn’t mean misuse his Grace) and because of Christ’s sacrifice, we’re saved if we confess that we believe. They make it seem so hard to follow Christ when although it comes with hardships, it’s pretty simple.

Why do so many believers of Christ think that if you don’t follow the Bible literally, you’re destined to go to hell?
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