Possible meanings are 1) "if your eye is bad, it fills your body with darkness" or 2) "if your eye is bad, it shows that your body is full of darkness."
# if your eye is bad
Possible meanings are "if your eye is evil" or "if your eye does not see clearly." Jesus speaks of the eye to talk about what a person thinks about and wants. Possible meanings of the metaphor are 1) "if you are greedy," or 2) "if you do not look at and want what is right." (See: [[rc://en/ta/man/jit/figs-metaphor]])