A foundation is the supporting base of a building or structure. Figuratively, it is a basic support, beginning, or underlying principle. The word can describe the foundation of the world, a building, the church, repentance, or a social order that may be destroyed.
Christ is called the foundation of the church, while apostles and prophets are associated with the church’s foundation with Christ as cornerstone. Repentance is described as a foundation teaching. The word is also used of the foundations of the world and of buildings, including houses that stand or fall according to their foundation.
Most Hebrew foundation terms are derived from a verb meaning to found. Greek usage distinguishes a term for the foundation of the world from one used for the foundation of a building and its figurative applications.