William Barclay's Daily Study Bible - Matthew 6:22-23
6:22-23 The light of the body is the eye. So then, if your eye is generous, the whole body will be full of light; but if your eye is grudging, your whole body will be in the dark. If, then, the light which is in you is darkness, how great is that darkness! The idea behind this passage is one of childlike simplicity. The eye is regarded as the window by which the light gets into the whole body. The state of a window decides what light gets into a room. If the window is clear, clean. and... read more
Matthew Henry's Complete Commentary - Matthew 6:19-24
Worldly-mindedness is as common and as fatal a symptom of hypocrisy as any other, for by no sin can Satan have a surer and faster hold of the soul, under the cloak of a visible and passable profession of religion, than by this; and therefore Christ, having warned us against coveting the praise of men, proceeds next to warn us against coveting the wealth of the world; in this also we must take heed, lest we be as the hypocrites are, and do as they do: the fundamental error that they are guilty... read more