'Pruning hooks' in the Bible

And He will judge between the nations,And will mediate [disputes] for many peoples;And they will beat their swords into plowshares and their spears into pruning hooks.Nation will not lift up the sword against nation,And never again will they learn war.

For before the harvest, when the blossom is overAnd the flower becomes a ripening grape,He will cut off the sprigs [without buds] with pruning knives,And [He will] remove and cut away the spreading branches.

Beat your plowshares into swordsAnd your pruning hooks into spears;Let the weak say, “I am strong!”

And He will judge between many peoplesAnd render decisions for strong and distant nations.Then they shall hammer their swords into plowsharesAnd their spears into pruning hooks [so that the implements of war may become the tools of agriculture];Nation shall not lift up sword against nation,Nor shall they ever again train for war.