Puritans

The common spirituality that united Puritanism emphasized Christian experience and promoted corporate revival based upon the preaching of the Bible and wrought by the Holy Spirit.
Kelly M. Kapic and Randall C. Gleason from The Devoted Life (pg. 32)

Nearly every association which now clings to the word puritan has to be eliminated when we are thinking of the early Protestants. Whatever they were, they were not sour, gloomy, or severe; nor did their enemies bring any such charge against them...a Protestant was one "dronke of the new must of lewd lightness of minde and vayne gladness of harte." Protestantism was not too grim, but too glad, to be true.
C.S. Lewis

The value we have given to that word [Puritan] is one of the really solid triumphs of the last hundred years.
Uncle Screwtape from C.S. Lewis' Screwtape Letters