Ephesians 2:18 Meaning

16And that he might reconcile both unto God in one body by the cross, having slain the enmity thereby:

17And came and preached peace to you which were afar off, and to them that were nigh.

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

19Now therefore ye are no more strangers and foreigners, but fellowcitizens with the saints, and of the household of God;

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