Olivet Discourse & The End of the Age: Where did the phrase about the "end of the age" in the Olivet Discourse [Luke 17, Mark 13, Luke 21, Matthew 24]. Matthew's Grouping of Events: How does one prove that Matthew is grouping (and conflating) events more by subject (Sermon on the Mount, Missionary, Parables, Relationships, Olivet Discourse), rather than chronologically? [Matthew 5-7, Matthew 10, Matthew 13, Matthew 18, Matthew 24-25].