All this was the answer to their perplexity. They were willing and waiting to follow, but they had failed so badly. They were not quite sure where they stood. They had no finger-posts. Now the finger-posts were put up to show the way. This fishing scene was an acted parable, the Parable of the Finger-posts. The Lineage of Service. Look at these finger-posts a little. There was the Lord Jesus. They didn't recognize Him. But He was there. He had a plan. He took authoritative command of their movements. He gave directions. They obeyed Him. Then came the great haul of fish. Then came the quiet talk about love and service, but with the emphasis on love. The love was the chief thing. The service was something growing out of love. "Lovest thou Me?" Then thou mayest serve, thou hast the chiefest qualification. Our Lord gave them the lineage of service that morning. These are the generations of true service. A sight of Jesus begets love, a tender, gentle, strong, passionate thing of rarest beauty that is immortal, but must have the constant sight of its father's face for vigorous life. And love at once begets obedience, which grows strong and stout and skilled, as long as it stays in its father's presence. And obedience begets service, untiring, glad, patient service. There are some outsiders that have come into this family, but they do not have the fine traits of blood-kin. "Duty" is one of these. It serves because it must. And at times it renders fine, high service. But its service comes out of the will, rather than out of the heart. It is ruled more by a sense of propriety, never by a passion of the heart. "Privilege" is near of kin to duty, and it is a high-born, fine-grained thing. It serves because it is an honour to do so. It is enjoyable to be so highly connected. But it constantly needs proper recognition and appreciation of its work and skill. But these are really outsiders. They have married in, and do not have the real family traits. The one word, and the only one, that may properly be used for true service is that fine word, "passion." True service is a thing of love, a thing of the heart, a flame that pervades and permeates and envelops the whole life within and without, a fire that consumes and controls.