33 "No one, when he has lit a lamp, puts it in a secret place or under a basket, but on a lampstand, that those who come in may see the light. 34 The lamp of the body is the eye. Therefore, when your eye is good, your whole body also is full of light. But when your eye is bad, your body also is full of darkness. 35 Therefore take heed that the light which is in you is not darkness. 36 If then your whole body is full of light, having no part dark, the whole body will be full of light, as when the bright shining of a lamp gives you light."
Matthew Henry's Commentary on Luke 11:33-36
Commentary on Luke 11:29-36
(Read Luke 11:29-36)
Christ promised that there should be one sign more given, even the sign of Jonah the prophet; which in Matthew is explained, as meaning the resurrection of Christ; and he warned them to improve this sign. But though Christ himself were the constant preacher in any congregation, and worked miracles daily among them, yet unless his grace humbled their hearts, they would not profit by his word. Let us not desire more evidence and fuller teaching than the Lord is pleased to afford us. We should pray without ceasing that our hearts and understandings may be opened, that we may profit by the light we enjoy. And especially take heed that the light which is in us be not darkness; for if our leading principles be wrong, our judgment and practice must become more so.