Bible Dictionary
FOUNDATION
A foundation is the supporting base of a building. Figuratively, Christ is the church’s foundation, while apostles and prophets are associated with its foundational testimony, and repentance is a basic Christian teaching.
Biblical Usage
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.