John 8:12

The light of the world] The idea of the Messiah as 'the Light' was familiar to the Jews (see Luke 1:78; Luke 2:32), and was especially appropriate at the Feast of Tabernacles, during which (or perhaps on the first day only) the two colossal golden candlesticks in the Court of the Women were lighted. Christ as 'the Light of the world' dissipates the darkness of ignorance and sin. The light of life] i.e. My guidance which leads to life eternal.