The context of the gospel today is the Feast of the Dedication, or Hanukkah. It is the winter festival of
light for Jews when they remember the reconsecration of the Jerusalem Temple
after it had been desecrated by Greek pagan worship imposed by the Hellenist
leader Antiochus IV Epiphanes. We can read about this in the first book of
Maccabees (1 Mac 4: 36f). After the abomination of pagan worship being
performed in the Temple, and after the followers of Judas Maccabeus had
defeated the occupation of the Greeks, the Temple needed to be cleansed so that
right worship could be offered there once again. This was extremely important
because worship goes to the very core of who we are as human beings, if we
offer wrong worship, if we offer worship contrary to God’s directions, then we
commit the gravest of sins – the worship of a false god or idolatry. So the
Jews needed to restore their unique place of worship.