What could possibly better known across the entire Christian world than the idea that we should examine ourselves? Everywhere in both Roman Catholic and Protestant empires and monarchies, as people approach the Holy Supper they are given teachings and warnings that they must examine themselves, recognize and admit to their sins, and start a new life of a different nature. In British territories this is done with terrifying threats. During the prayer that precedes communion, the priests by the altar reads and proclaims the following:
The way and means of becoming a worthy partaker in the Holy Supper is first to examine your life and your conversations by the rule of God’s commandment. In whatever regard you notice that you have committed an offense of will, speech, or act, then bewail your own sinfulness and confess yourselves to Almighty God, with full purpose of amending your life. If you observe that your offences are not only against God but also against your neighbors, you shall reconcile yourselves to them, being ready to make restitution and satisfaction to the utmost of your power for all injuries and wrongs done by you and any other, and being likewise ready to forgive others who have offended you, just as you wish to have forgiveness from God for your offenses. Otherwise receiving the Holy Supper does nothing but increase your damnation. Therefore if any of you is a blasphemer of God, or a hinderer or slanderer of his Word, or an adulterer, or someone taken with malice or ill will, or involved in any other grievous crime, repent of your sins. Or else do not come to the Holy Supper, otherwise, after you take it the Devil may enter into you as he entered into Judas, fill you with all wickedness, and bring you to destruction of both body and soul.
from Regeneration, Pages 29, 30