“The stone which the builders rejected Has become the chief cornerstone.” (Psalm 118:22).
Looking forward to the coming of the Promised One, David prophesies here about Jesus who would come as a solid spiritual Rock for the benefit of all humanity, both those who lived before the cross and those who lived afterward.
When Jesus came, the Jews rejected both Him and His message of salvation for all people, both Jews and Gentiles. The rulers and the ordinary Jews were the builders in this figure, and the chief cornerstone, of course, is Jesus Christ.
In spite of the Jews’ rejection of Jesus, He came to the earth and fulfilled the mission to which God had commissioned Him: He came as the Savior of all people—that is, the chief cornerstone of Christianity. Both then and now, those who reject Jesus will be rejected by the Father in judgment.