Capstones are not Cornerstones It's just that Simple

A Few Random, References to 'Capstone' where 'Cornerstone' is Supposed to Be
            
Thank you for responding to me; you’ve truly become my salvation! The stone the masons discarded as flawed is now the Capstone! This is GOD’s work. We rub our eyes-we can hardly believe it!
       
- Psalm 118:21-23 The Message (MSG)

Have you not even read this scripture: ‘The stone that the builders rejected has become the Capstone.'
  
- Mark 12:10 Mounce Reverse-Interlinear New Testament (MOUNCE)

But having looked at them, Rebbe, Melech HaMoshiach said, What then is this which has been written: EVEN MAASU HAYTAH LEROSH PINAH (The Stone they rejected became the Capstone)? [TEHILLIM 118:22]
 
- Lukas 20:17 Orthodox Jewish Bible (OJB)
      
So God honors you who believe. For those who refuse to believe, though, the stone the builders tossed aside has become the Capstone.

- 1 Peter 2:7 Common English Bible (CEB)