The Lord tells us: I am the light of the world; he who follows me will not walk in darkness, but will have the light of life. In these few words he gives a command and makes a promise. Let us do what he commands so that we may not blush to covet what he promises and to hear him say on the day of judgment: “I laid down certain conditions for obtaining my promises. Have you fulfilled them?” If you say: “What did you command, Lord our God?” he will tell you: “I commanded you to follow me. You asked for advice on how to enter into life. What life, if not the life about which it is written: With you is the fountain of life?” Let us do now what he commands. Let us follow in the footsteps of the Lord. Let us throw off the chains that prevent us from following him. Who can throw off these shackles without the aid of the one addressed in these words: You have broken my chains? Another psalm says of him: The Lord frees those in chains, the Lord raises up the downcast. Those who have been freed and raised up follow the light. The light they follow speaks to them: I am the light of the world; he who follows me will not walk in darkness. The Lord gives light to the blind. Brethren, that light shines on us now, for we have had our eyes anointed with the eye-salve of faith. His saliva was mixed with earth to anoint the man born blind. We are of Adam’s stock, blind from our birth; we need him to give us light. He mixed saliva with earth, and so it was prophesied: Truth has sprung up from the earth. He himself has said: I am the way, the truth, and the life.