Seth in Fausset's Bible Dictionary

Genesis 4:25; Genesis 5:3; 1 Chronicles 1:1. Seth means "foundation," being "appointed" in Abel's place as ancestor of the promised Seed. Father of Enos ("frailty"); a name embodying his sense of man's weakness, the opposite of the Cainites' pride. This sense of frailty led the Sethites to calling on God in His covenant relation to His believing people; thus began the church as a people separated from the world, and its service of prayer and praise. While the Cainites, by erecting a city and inventing worldly arts, laid the foundation of the world kingdom, the Sethites, by joint invocation of Jehovah's name i.e. His self manifestation towards man, founded the kingdom of God.