John 2:19
“Destroy this Temple, and in three days I will raise it up.”
Many such sayings He utters which were not intelligible to His immediate hearers, but which were to be so to those that should come after. And wherefore does He this? In order that when the accomplishment of His prediction should have come to pass, He might be seen to have foreknown from the beginning what was to follow; which indeed was the case with this prophecy. For, says the Evangelist,
Source: Homilies on the Gospel of John (New Advent)