The concept of Hell discourages belief

[John V]

And you think the Greek mythological realm of Hades and Tartarus are the conterparts to Hebrew's sheol?

I think the concept of hades was close enough to the concept of sheol, yes.

The Septuagint (Greek translation of the OT) was done hundreds of years before the NT was written and it substituted hades for sheol. This was not a new practice with the NT writers.