The Reformed say, largely based upon Romans 3, that literally every human being who has ever lived has sinned and deserves damnation (Of course, they make an exception for the Lord Jesus, but we will pass over this as a quibble).
We have seen before that there are problems with this doctrine to be found in the Bible. Job is another difficulty, for there God says this to Satan:
“Have you considered my servant Job, that there is none like him on the earth, a blameless and upright man, who fears God and turns away from evil?” (Job 1:8; emphasis added)
If Job was a sinner worthy of damnation, it would not be possible for God to call him blameless. This contradicts the Reformed idea of total depravity; hence that doctrine is erroneous.