Your eyes [MET] are like a lamp for your body, because they enable you to see things. If your eyes are healthy, you are able to see everything well [MET]. Similarly, if you(sg) accept my teaching, you will be able to know all that God wants you to know. But if your eyes are bad, you are not able to see anything. It is like being in darkness [MET]. And similarly, if you(pl) do not accept what I teach, you will not be able to know all the things that God wants you to know.