This parable is from the Great Biography of Shangshu, the Great War of Shangshu, which loves a person and loves the crow in his house, and the metaphor of loving a person and caring for people or things related to him.
In the last year of the Shang Dynasty, the king of The Shang Dynasty was extremely poor and extravagant, brutal and ruthless, and Ji Chang, the leader of the Western princely states, was determined to overthrow the rule of the Shang Dynasty, actively trained his troops to prepare for war, and prepared to move east, but unfortunately he died without realizing his wish. After Ji Chang's death, his son Ji Fa succeeded him as king and became king of Zhou. King Wu of Zhou, assisted by his military master Jiang Shangtaigong and his younger brothers Ji Yue (姬曰周公) and Ji Yizhao (姬奭) summoned the princes, united with the princes and sent an army against the King of Zhou. The two sides exchanged troops in Makino. By this time, the king had lost all his hearts and minds, and the armies had turned against each other, and finally suffered a great defeat. The Shang capital, Chaoge, was quickly conquered by the Zhou army. The King of Lu set himself on fire and the Shang Dynasty perished.
After the death of King Huan, King Wu's heart was not at peace, and he felt that the world was not yet stable. He summoned Taigong Jiang and asked, "After entering the Capital of Yin, what should we do with the soldiers of the old dynasty?" ”
"I've heard the saying that if you love that man, you love even the crows in his house; if you don't like that person, even with the fences of the walls of his house. The meaning is clear: kill all the enemy elements and leave no one behind. King, what do you think? Taigong said.
King Wu thought that this could not be the case. Then the summoner came forward and said, "I have heard that those who are guilty will be killed, and those who are innocent shall let them live." All the guilty should be killed and left with no remnants of strength. King, what do you think? King Wu didn't think so.
At this time, Zhou Gong stepped forward and said, "I think everyone should go back to their own homes and cultivate their own fields." The king did not favor his old friends and relatives, and used benevolence to impress the people of the whole world. ”
King Wu was very happy to hear this, and his heart suddenly opened up, and he felt that the world could be stable from now on.
Later, the King of Wu did as the Duke of Zhou said, and the world was indeed quickly settled, the people's hearts were attached, and Western Zhou became stronger.