Your heart is like that black substance. You cannot make it white, but Jesus can make is as white as snow. Look and listen. I will show you the good news. Prepare a piece of cardboard twelve inches square, have on it the outline of a heart with a big black dot in the center of it, and write over and under it "My Sins." Hold this up before the audience as a gospel X-ray photograph of the heart. Sin is an affair of the heart. It is a bad heart condition. The gospel offers the only cure. It comes down from heaven, Jesus brought it with him and gave it to the world. Prepare also another card of the same size containing the words, "The blood of Jesus Christ cleanseth us from all sin." One night Martin Luther had a dream, and he thought he saw himself standing before the judgment-bar. Looking into the open book he saw opposite his name a fearful lot of sins. Some were sins of commission, others sins of omission. Some were deliberate sins, others sins of thoughtlessness. Satan, standing at his side, said: "Behold your record [Hold up the heart]. There is no hope for you." But just then he saw to his great joy, written above the crimson stain, the words, "The blood of Jesus Christ cleanseth from all sin." Now place the second card over the first, and the sins have all disappeared, and are under the blood forever. This is the way to take away sin, so it is taken away forever. In old Scotland, in the lake district, they tell a quaint little story about a lonely little pool of water on the mountainside of Lock Lomond called the Fairy Loch. If you look into it you will see a great many colors on the surface of the water due to the varied nature of the minerals which form the bottom. There is a legend which says that fairies used to dye things from these waters for the people. One day a shepherd brought a black sheep to the Fairy Loch and asked the fairies to dye it white. This the fairies could not do. They could dye white any color, but not the black. This was an impossibility, so in their despair they threw all their colors into the Loch at one time. This gives the Loch the colorful appearance now. No fairy or any human power can change the black of sin into the white of righteousness. The pool of life is full of these fancy colors that declare that they have the power to change black to white, but they are only bubbles on the surface. Don't trust them. This is a matter for eternity. God alone can change black into white. The blood of Jesus Christ takes all sin away. =20 WHAT THE FLAG SIGNALS SAY OBJECTS: Four Plain Flags of Different Colors= Flags have a language. They talk to men when they are employed as signals. The standard signals of the railroad system send forth most important messages. Let us see what they teach on the Railroad of Life.