I invite you now to turn again to the thirteenth chapter of the Gospel of Matthew where we will examine another of the parables that our Lord gave on a single occasion by the Sea of Galilee. In them he sets forth in parable form the great secrets of the kingdom of heaven, the mysteries of the present age, the revelation of the forces and powers at work in the age which began with our Lord's first coming and which will end with his second appearing. Today we come to the fourth of these parables. It occupies but one verse in the chapter, Verse 33: