The servant of the Lord of the vineyard is the unnamed laborer who carries out the master’s commands throughout the allegory of the olive tree in Jacob 5. On the master’s instruction, the servant grafts branches of the wild olive tree into the cultivated tree (Jacob 5:10). As the two go down into the vineyard to labor, the servant reports the condition of the trees to the master (Jacob 5:16). When the master plants a branch, the servant asks why he set it in what was the poorest spot in all the land of the vineyard (Jacob 5:21). Later the servant reports that the grafted wild branches have nourished the roots so that the trees are still alive and good (Jacob 5:34).
When the master is ready to cut down trees that bear bad fruit, the servant asks him to spare the vineyard a little longer (Jacob 5:50). The servant then helps graft branches from the natural tree that had become wild back into the natural trees (Jacob 5:55). At the master’s command the servant goes and brings other servants to labor, though they are few (Jacob 5:70).