Quiz: Bible Catchphrases

This expression is found in the Book of the Prophet Isaiah: "... Behold, I lay in Zion a stone for a foundation, A tried stone, a precious cornerstone, a sure foundation; ..." (Isaiah 28:16). The cornerstone refers to the Messiah, the Lord Jesus Christ. This parallel is clearly expressed by the apostle in the Epistle to the Ephesians: "Now, therefore, you are no longer strangers and foreigners, but fellow citizens with the saints and members of the household of God, having been built on the foundation of the apostles and prophets, Jesus Christ Himself being the chief cornerstone, ..." (Eph. 2:19-20). In secular usage, a cornerstone is something that is fundamental, foundational.