Jesus speaks of his teaching as light that he wants his disciples to obey and share with others. He speaks of people who do not know or accept his teaching as being in darkness. (See: [[rc://en/ta/man/translate/figs-metaphor]])
Jesus states the same truth he has just presented as a metaphor, but this time he uses a simile. He speaks of people who are full of truth as if they are a lamp that shines brightly. (See: [[rc://en/ta/man/translate/figs-simile]])