‘I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life.’ The seven ‘I am’ sayings of Jesus work together with the seven signs in John’s Gospel to bring people to an understanding that he is ‘the Messiah, the Son of God and that by believing you may have life in his name.’ John 20:31. They are firmly rooted in the Old Testament and this week’s saying illustrates this clearly, set against the backdrop of the Feast of Tabernacles. In order to understand the feast better you may find it useful to go to:
https://jewsforjesus.org/jewish-resources/community/jewish-holidays/sukkot-the-feast-of-tabernacles/ and listen to the message given by a Jewish Christian. I think you will find it helpful. All these ‘I am’ sayings demanded a response from the hearers then and demand a response from us now. The reason people find them difficult or even offensive is they are exclusive. ‘I am the bread of life…the light of the world…the gate…the way.’ Our response is to Jesus alone and not Jesus as an option among others. Our consumer society has engendered the concept of choice. We can choose to accept or reject what Jesus has said, not mix and match.