Some thirty years after the death and resurrection of Christ, St. Peter wrote to the believers of the Jewish dispersion:
“Unto you therefore which believe He is precious; but unto them which be disobedient, the Stone which the builders disallowed, the same is made the head of the corner, And a stone of stumbling, and a rock of offence, even to them which stumble at the word, being disobedient…” (I Pet. 2:7,8).
It is true that Israel’s builders, 2000 years ago, “disallowed” Christ as the cornerstone for their building, and that when He became the “Head of the corner,” according to Psa. 118:22, it was for them an occasion for stumbling and embarrassment.
But Christ is a “stone of stumbling” to all who reject Him. In Rom. 9:33 St. Paul quotes from several Old Testament passages:
“As it is written, Behold, I lay in Sion a stumblingstone and rock of offence; and whosoever believeth on Him shall not be ashamed.”
In Peter’s day and in Paul’s, those who looked upon Christ as their Cornerstone were never given cause to be ashamed. It was those who disallowed and refused Him who kept stumbling over Him and were constantly embarrassed by Him.
So today, those who put their trust in the crucified, risen Christ are eternally secure and will never be put to shame for having done so. But those who reject Christ keep forever stumbling over Him. They see Him offered as the One who died for their sins and they are constantly confronted with His claims…yet they are embarrassed. They keep forever stumbling over Him.
Trust Him now as your personal Savior, for “whosoever believeth on Him shall not be ashamed.” source