One of the most marked differences is their attitude toward the world. The churchly denominations largely represent groups that have made their peace with the world and have considerable stake in the world.
In contrast, the sects more or less reject the world. The more extreme even seek, as far as possible, to live in distinct communities apart from the world. They maintain more or less consistently their distinctive customs. The Amish Brethren are possibly the best known of such groups in the United States.
Other sectarian groups are less extreme and emphasize moral and spiritual separation and a distinctive lifestyle. This is true of the various contemporary "holiness" groups and has been true to a considerable degree of Southern Baptists.