The king starts with an agricultural metaphor. Just as a farmer plants a crop and works to make it thrive, the king is going to ensure that Macbeth and Banquo rise up among the nobility. Duncan says that he will enfold them, meaning he will keep them close to his heart. Banquo picks up on the agricultural metaphor while punning on the word enfold. In Shakespeare’s time, “fold” could refer to the ground. Banquo says that if the king enfolds him—plants him in the soil—then any harvest that results will belong to the king.