As it is written,
Behold, I lay in Zion a stumbling stone and rock of offense: and whosoever believes on him shall not be ashamed.
All Commentaries on Romans 9:33 Go To Romans 9
Tertullian of Carthage
AD 220
It was fitting that the mystery of the passion should be set forth in predictions, for the more incredible it was, the more likely it was to have been a stumbling stone if it had been openly predicted.