“The light of the body is the eye: therefore when thine eye is single, thy whole body also is full of light; but when thine eye is evil, thy body also is full of darkness.
Take heed therefore that the light which is in thee be not darkness.
If thy whole body therefore be full of light, having no part dark, the whole shall be full of light, as when the bright shining of a candle doth give thee light.” Luke 11:34-36 KJV
Here in Luke 11, we also find the use of the word “singleness”. If something is single, it implies that it is whole. There is only one element, one piece, one unit.
If your eyes are one way here and one way there, they cannot be fully looking at both directions at the same time. Your vision is not in focus. But when it is single, when it is whole, i.e., completely concentrated in one direction, everything becomes clear. This word ‘whole’ appears twice in Luke 11:36.
The original word for ‘whole’ is sometimes translated by the word ‘complete.’ So the person whose eye is single is also a person who is complete. His attention is totally directed towards God. This is the vital principle of spiritual vision. When your eye is completely fixed upon God, no part of you is darkness. The light of God’s truth will shine upon you with its rays and give you light.
In this parallel passage in Luke, it is interesting that it is almost identical to the passage in Matthew 6. In Luke 11:36 we are warned: “..watch out that the light in you may not be darken,” so we are to be on the watch that we take in His light, not darkness.
You see, every man thinks that he sees and that he has light. Every man also, thinks that what he sees, what he believes and what he perceives is the truth.
Jesus tells us that it is not always the case. You may think that you see, but in reality you are in the dark. It is like a person who is nearsighted but he doesn’t know that he is nearsighted. He thinks that he sees well, but in reality, his vision is blurred.
It is all a question of perception, whether we see with a healthy eye or a diseased eye. The good eye is the single eye, the eye that concentrates on seeing the light, the way of God and His righteousness. It can take in spiritual truth. The bad eye is the evil eye. It centers upon the world and material things. Its focus is on self and wealth.
What determines the health of the body, whether it is full of light or full of darkness depends on the content of what we perceive. In other words, what we are is related to what we take in and accept as truth. That is why having healthy eyes is so important. If our eyes are good, we will see the light that Jesus offers. If our vision is clouded by evil, we will miss that light.
Jesus’ light is shining forth upon all of us. If we do not see that light, it is not because the light is not there. It is because something is wrong with our eyes; our spiritual eyes. Jesus is warning us to make sure that what we see is seen with a good eye.
Make sure that what is in you is light and not darkness.