False doctrines, false teachings, false prophets adulterate the Jewish Christian foundation

Ephesians 2:18-20 KJV

(18)  For through him we both have access by one Spirit unto the Father.

(19)  Now therefore ye are no more strangers and foreigners, but fellow citizens with the saints, and of the household of God;

(20)  And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone;