Proverbs 27:17-27

As iron sharpens iron, So one man sharpens [and influences] another [through discussion]. He who tends the fig tree will eat its fruit, And he who faithfully protects and cares for his master will be honored. [1 Cor 9:7, 13] As in water face reflects face, So the heart of man reflects man. Sheol (the place of the dead) and Abaddon (the underworld) are never satisfied; Nor are the eyes of man ever satisfied. [Prov 30:16; Hab 2:5] The refining pot is for silver and the furnace for gold [to separate the impurities of the metal], And each is tested by the praise given to him [and his response to it, whether humble or proud]. Even though you pound a [hardened, arrogant] fool [who rejects wisdom] in a mortar with a pestle like grain, Yet his foolishness will not leave him. ¶Be diligent to know the condition of your flocks, And pay attention to your herds; For riches are not forever, Nor does a crown endure to all generations. When the grass is gone, the new growth is seen, And herbs of the mountain are gathered in, The lambs will supply wool for your clothing, And the goats will bring the price of a field. And there will be enough goats’ milk for your food, For the food of your household, And for the maintenance of your maids.