The helmet of hope! Who has not experienced the energy of a mighty hope? It is always a force to be reckoned with in the day of life's battle. Hope is a splendid helmet, firmly covering the head, and defending all its thoughts and purposes and visions from the subtle assaults of the evil one. The helmet of hope is one of the best protections against "losing one's head"; it is the best security against all attacks made upon the mind by small but deadly fears; it is the only effective safeguard against petty but deadly compromise. Far away the best defence against all sorts of mental vagrancy and distraction is to have the executive chambers of the life encircled and possessed by a strong and brilliant hope. Now every student of the apostle Paul knows that he is an optimist. But he is an optimist, not because he closes his eyes, but because he opens them and uses them to survey the entire field of vision and possibility. He is an optimist, not because he cannot see the gross darkness,--no one has painted the darkness in blacker hues,--but because he can also see the light; and no one has portrayed the light with more alluring brilliance and glory. He is an optimist, not because he cannot see the loathsome presence of weakness, but because he sees the unutterable grace and love of God. Yes, he is a reasonable optimist, and I dare to say that you cannot find anywhere in human literature a hundred pages more glowing and radiant with the spirit of hope than in the letters of the apostle Paul. Nowhere can you travel with him, not even to the darkest and most tragic realms of human need, without catching the bright shining of a splendid hope. You know how it is when you walk along the shore with the full moon riding over the sea. Between you and the moon, and right across the troubled waters, there is a broad pathway of silver light. If you move up the shore the shining path moves with you. If you move down the shore still you have the silver path across the waves. Wherever you stand there is always between you and the moon a shining vista stretching athwart the restless sea. And wherever the great apostle journeyed, and through whatever cold or desolate circumstances, there was always between him and the risen Lord, the Lord of grace and love, a bright and broadening way of eternal hope. No matter where he is, and how appalling the need, no matter what corruption may gather about the shore on which he is walking, always there is the silver path of gospel-hope stretching from the human shore-line to the burning bliss of the eternal Presence. In Jerusalem, in Antioch, in Lystra, in Ephesus, in Philippi, in Rome, he was never without these holy beams. They moved with him wherever he went, for they were the outshining rays of the mercy of the eternal God. Yes indeed, he was an optimist born and sustained in grace. He saw a shining road of hope out of every pit, stretching from the miry clay to