35 Take heed therefore that the light which is in thee be not darkness.
35 See to it, then, that the light within you is not darkness.
35 Therefore be careful lest the light in you be darkness.
35 Keep your eyes open, your lamp burning, so you don't get musty and murky.
35 Therefore take heed that the light which is in you is not darkness.
35 Make sure that the light you think you have is not actually darkness.
Matthew Henry's Commentary on Luke 11:35
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.