John 12:35
Then Jesus told them, 'You are going to have the light just a little while longer. Walk while you have the light, before darkness overtakes you. Whoever walks in the dark does not know where they are going — Jesus answers indirectly, using the metaphorical language of light and darkness characteristic of John: He, the light, will soon be removed from them, and darkness (spiritual blindness, death, separation from God) threatens. The exhortation to walk in the light while it remains emphasizes the urgency of belief and discipleship.