Verse 33-36 are a metaphor where Jesus speaks of his teaching as "light" which should be shared with everyone and acted upon. He speaks of people who do not accept his teaching as being in "darkness." (See: [[rc://en/ta/man/translate/figs-metaphor]])
The understood subject and verb in this clause may be supplied. AT: "but they place it on a lampstand" or "but they put it on a table" (See: [[rc://en/ta/man/translate/figs-ellipsis]])
In this part of the metaphor, the things they saw Jesus do provided understanding just as an eye provides light for the body. (See: [[rc://en/ta/man/translate/figs-metaphor]])
The body is a synecdoche for a person's life. (See: [[rc://en/ta/man/translate/figs-synecdoche]])
# When your eye is good
"eye" here is a metonym for vision. AT: "When your vision is good" or "when you see well" (See: [[rc://en/ta/man/translate/figs-metonymy]])
# the whole body is filled with light
This can be stated in active form. AT: "the light will fill your whole body" or "you will be able to see everything clearly" (See: [[rc://en/ta/man/translate/figs-activepassive]])
# when your eye is bad
Here "eye" is a metonym for vision. AT: "When your vision is bad" or "when you see poorly" (See: [[rc://en/ta/man/translate/figs-metonymy]])
# your body is full of darkness
"you will not be able to see anything"
# be careful that the light in you is not darkness
"make sure that what you think is light is not actually darkness" or "make sure you know what is light, and know what is darkness"
# then your whole body will be like when a lamp shines its brightness on you
Jesus states the same truth as 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]])
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