1)
Who will sit under their vines and fig trees?
1.
Radak: Yisrael, and also Nochrim will not have war.
2)
What is the significance of sitting under their vines and fig trees?
1.
Malbim: They will not have feuds due to lack of food and poverty, which leads to war 1 .
1
Brachos 3b: When Yisrael lacked food, David decided to go to war. (PF)
3)
Where did Hashem say so?
1.
Rashi: "V'Nasati Shalom ba'Aretz" (Vayikra 26:6)
4)
Why does it say that Hashem said so?
1.
Radak: Since He spoke, He will fulfill it.