Luke 11:33-36

33“No one lights a lamp and puts it in the cellar or under a basket, but on a lampstand, so that those who come in may see its light.

34Your eye is the lamp of the body. When your eye is healthy, your whole body is also full of light. But when it is bad, your body is also full of darkness.

35Take care, then, that the light in you is not darkness.

36If, therefore, your whole body is full of light, with no part of it in darkness, it will be entirely illuminated, as when a lamp shines its light on you.”