Isaiah 2:2-4 In the last days, the mountain of the Lord’s house   will be the highest of all—the most important place on earth.  … The Lord will mediate between nations and will settle international disputes. They will hammer their swords into plowshares and their spears into pruning hooks. Nation will no longer fight against nation, nor train for war anymore.

“It is suggested by Jewish commentators that God created “menuha” on the seventh day. “menuha” is the Hebrew word for rest, but it is better translated as joyous repose, tranquility, or delight. To the biblical mind, “menuha” is the same as happiness, stillness, peace, and harmony. It is the state in which there is no strife or fighting or fear or distrust.”  
Sabbath by Dan Allender p.28