'Polished' in the Bible

“Son of man, prophesy and say, ‘Thus says the Lord.’ Say,‘A sword, a sword sharpenedAnd also polished!

‘Sharpened to make a slaughter,Polished to flash like lightning!’Or shall we rejoice, the rod of My son despising every tree?

It is given to be polished, that it may be handled; the sword is sharpened and polished, to give it into the hand of the slayer.

“And you, son of man, prophesy and say, ‘Thus says the Lord God concerning the sons of Ammon and concerning their reproach,’ and say: ‘A sword, a sword is drawn, polished for the slaughter, to cause it to consume, that it may be like lightning—