Beat your plowshares into swords and your pruning hooks into spears. Let the weakling say, "I am strong!" Joel 3:10
They will beat their swords into plowshares and their spears into pruning hooks. Nation will not take up sword against nation, nor will they train for war anymore. Micah 4:3
These passages might seem contradictory. In fact they are, if the vital element of time is ignored. For there will come a time for rearmament, after the disarmament so desired by the coming world leader. For a time will come when Israel will seem helpless in the face of a great invasion. But God will defeat this great enemy and make his people strong.
How can we know that Israel will be disarmed? It has been already, under the rule of the Philistines. And in the future they will have to make their weapons from farm implements. Every disarmed nation faces defeat or domination by their own government.
Why such primitive weapons? Because our "wonderful" killing technology is doomed to fail. We began with swords and spears and soon we will return to them. They will be the last earthly weapons. War, then peace.
The future looks very good for blacksmiths.