Ezekiel 21:9-11, 19

Son of man, prophesy, and say, Thus saith the LORD; Say, A sword, a sword is sharpened, and also furbished: it is sharpened to make a sore slaughter; it is furbished that it may glitter: should we then make mirth? it contemneth the rod of my son, as every tree. And he hath given it to be furbished, that it may be handled: this sword is sharpened, and it is furbished, to give it into the hand of the slayer.

Also, thou son of man, appoint thee two ways, that the sword of the king of Babylon may come: both twain shall come forth out of one land: and choose thou a place, choose it at the head of the way to the city.