From: Matthew 11:20-24
Jesus Reproaches People for Their Unbelief
 Then He (Jesus) began to upbraid the cities where most of His mighty works had been done, because they did not repent.  "Woe to you, Chorazin! woe to you, Bethsaida! for if the mighty works done in you had been done in Tyre and Sidon, they would have repented long ago in sackcloth and ashes.  But I tell you, it shall be more tolerable on the day of judgment for Tyre and Sidon than for you.  And you, Capernaum, will you be exalted to Heaven? You shall be brought down to Hades. For if the mighty works done in you had been done in Sodom, it would have remained until this day.  But I tell that it shall be more tolerable on the day of judgment for the land of Sodom than for you."
21-24. Chorazin and Bethsaida were thriving cities on the northern shore of the lake of Gennesaret, not very far from Capernaum. During His public ministry Jesus often preached in these cities and worked many miracles there; in Capernaum He revealed His teaching about the Blessed Eucharist (cf. John 6:51ff). Tyre, Sidon, Sodom and Gomorrah, the main cities of Phoenicia--all notorious for loose living--were classical examples of divine punishment (cf. Ezekiel 26-28; Isaiah 23).
Here Jesus is pointing out the ingratitude of people who could know Him but who refuse to change: on the day of Judgment (verses 22 and 24) they will have more explaining to do: "Every one to whom much is given, of him will much be required" (Luke 12:48).
Source: "The Navarre Bible: Text and Commentaries". Biblical text taken from the Revised Standard Version and New Vulgate. Commentaries made by members of the Faculty of Theology of the University of Navarre, Spain. Published by Four Courts Press, Kill Lane, Blackrock, Co. Dublin, Ireland. Reprinted with permission from Four Courts Press and Scepter Publishers, the U.S. publisher.