'Pruning hooks' in the Bible

And he will judge between the nations, And be umpire to many peoples, - And they will beat their swords into ploughshares and their spears into pruning-hooks, Nation - against nation, shall not lift up sword, Neither shall they learn any more to make war,

For before harvest, when the bud is perfect, And, the blossom, becometh a ripening grape, Then will one cut down the twigs with pruning-hooks, And the tendrils, will he remove and cast down: