How do we know that the church is established by God?

The establishment of the church is rooted in divine promise and authority. According to Ephesians 2:19-22, believers are 'fellow citizens with the saints and of the household of God; and are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone.' This indicates that God Himself has instituted the church, ensuring its foundation in Christ's finished work. Moreover, Psalm 87 emphasizes that 'the highest himself shall establish her,' highlighting God's active involvement in the church's growth and spiritual heritage.