YOU SAID:
If you live by the sword, you die by the sword
INTO JAPANESE
剣に生きれば剣に死ぬ
BACK INTO ENGLISH
If you live by the sword, you will die by the sword.
INTO JAPANESE
剣によって生きれば、剣によって死ぬことになる。
BACK INTO ENGLISH
If you live by the sword, you will die by the sword.
That didn't even make that much sense in English.