Hello. You did not present the text to which this question refers, which makes it impossible to elaborate an answer exactly. However, I will help you in the best possible way.
After researching several Puritan sermons, we can conclude that Puritans led a very rigid way of life, with little freedom and a lot of religiosity. Puritans rejected everything that was not described in the Bible as correct. For them, thoughts that were not turned to God and religion were sinful, as were actions and activities considered unclean by the church.
If a Puritan sinned, even in thought, he should be punished severely, for that is the only way to reach God's forgiveness.
They also believed that all people were condemned to hell, but God would choose some for salvation. The chosen ones would receive a confirmation signal at some point in life.