1.) There are lessons for us in the integration of their daily lives. As their Christianity was all-embracing, so their living was all of a piece. There was for them no disjunction between sacred and secular; all creation, so far as they were concerned, was sacred, and all activities, of whatever kind, must be sanctified, that is, done to the glory of God.
2.) There are lessons for us in the quality of their spiritual experience. In the Puritans’ communion with God, as Jesus Christ was central, so Holy Scripture was supreme.
3.) There are lessons for us in their passion for effective action. They had no time for idleness of the lazy or passive person who leaves it to others to change the world.
4.) There are lessons for us in their program for family stability. It is hardly too much to say that the Puritans created the Christian family in the English-speaking world.
5.) There are lessons to be learned from their sense of human worth. Through believing in a great God, they gained a vivid awareness of the greatness of moral issues, of eternity, and of the human soul.
6.) There are lessons to be learned from the Puritans’ ideal of church renewal. The essence of this kind of renewal (what they called “reformation”) was enrichment of understanding of God’s truth, arousal of affections Godward, increase of ardour in one’s devotions, and more love, joy, and firmness of Christian purpose in one’s calling and personal life.
From pages 23-27 of Packer’s “A Quest for Godliness.”