'Polished' in the Bible

That our sons may be as plants grown up in their youth; that our daughters may be as corner stones, polished after the similitude of a palace:

And he hath made my mouth like a sharp sword; in the shadow of his hand hath he hid me, and made me a polished shaft; in his quiver hath he hid me;

His body also was like the beryl, and his face as the appearance of lightning, and his eyes as lamps of fire, and his arms and his feet like in colour to polished brass, and the voice of his words like the voice of a multitude.