They are found quarrelling with or opposing God's people, whether it be Israel as a nation, or His true sons and daughters, and will reap the fruits of their action from the hands of him who will render a proper re-payment of vengeance in due time. Goats are extremely destructive. We were once informed, when touring Israel, that the Jews had no success in restoring forests in certain areas, until they banned goats from it, and then, immediately, they had success. The goats browse on the tender shoots of the trees and shrubs, and so prevent growth. Even in color and habits there are significant differences between the two animals.
Sheep are usually white whilst goats are black, speaking of righteousness and sin.
Moreover, the two animals maintain a measure of separateness, for though goats might mingle with sheep, there is no disposition on either side for more intimate acquaintance. The lessons of this are not hard to apply. For preparation of the kingdom has been proceeding from the very beginning of time. From the days of Adam onwards, God has supervised both His people and events, guiding the latter to a predetermined end, that ultimately the whole earth should be filled with His glory. To their surprise, the righteous will be told that they will enter the kingdom because of their actions towards Christ.