Explain in your own words the purpose of puritan ministers preaching sermons called 'jeremiads' that vehemently
denounced sinners? (100 words)

Puritans were protestors in 16th and 17th century who scared people with their sermons.

Explanation:

“Sermon” is a religious talk given in church.  Puritans wanted to purify the ''Church of England'' from the ''Roman catholic practices''. They observed that there is a decrease in the number of religious devotees of ''second-generation'' settlers. To increase this, they 'preached' a type of sermon called "jeremiad". This sermon basically wanted to scare people by stating that if anyone committed any sin, they would be tortured and burnt in hell.  

By all this, people would remain Puritan and believe in God and Church.