The Calvinists and the Existential Anxiety

The Calvinists were told that it was their duty to believe that they were the elect. The second thing they were told is they were told to work simply. Work and work alone banishes religious doubt and give certainty of one status among the saved. Now this plants the seed for working for work sick. No longer are they working to just sustain their lives and lives of their families. They are working to prevent idleness, which would result in this existential anxiety.