The prophet, as I said, mixes metaphors. 'I have blotted out as a cloud thy transgressions.' He uses two words for 'cloud' here; both of them mean substantially the same thing, and both suggest the same idea. When cloud fills the sky it darkens the earth, and shuts out the sunshine and the blue, it closes the petals of the little flowers, it hushes the songs of the birds. Sin makes for the sinning man 'an under-roof of doleful grey,' which shuts out all the glories above. Put that metaphor into plain English, and it is just this, 'Your sins have separated between you and your God, and your iniquities have hid His face from you that He will not hear.' It is impossible for a man that has his heart all stiffened by the rebellion of his will against God's, or all seething with unrestrained passions, or perturbed with worldly longings and desires, to enter into calm fellowship with God or to keep the thought of God clear before his mind. For we know Him, not by sense nor by reason, but by sympathy and by feeling. And whatsoever comes in to disturb a man's purity, comes in to hinder his vision of God. 'Blessed are the pure in heart, for they'--and they only--'shall see God.' Whenever from the undrained swamps of my own passions and sensualities, or from the as malarious though loftier grounds of my own self-regard, be I student or thinker, or moral man, there rise up these light mists, they will fill the sky and hide the sun. On a winter's night you will see the Pleiades, or other bright constellations, varying in brilliancy from moment to moment as some invisible cloud-wrack floats across the heavens. So, brother, every evil thing that we do rises up and gets diffused through our atmosphere, and blots out from our vision the face of God Himself, the blessed Son. Not only by reason of dimming and darkening my thoughts of Him is my sin rightly compared to an obscuring cloud; but the comparison also holds good because, just as the blanket of a wet mist swathing the wintry fields prevents the sunshine from falling upon them in blessing, so the accumulated effect of my evil doings and evil designings and thinkings and willings comes between me and all spiritual blessings which God can bestow, so that the very light of light, the highest blessings that He yearns to give, and we faint for want of possessing, are impossible even to His love to communicate until the cloud is swept away. So my sin darkens my soul, and separates me from the light of life.