'Sharp' in the Bible

And you, son of man, have no fear of them or of their words, even if sharp thorns are round you and you are living among scorpions: have no fear of their words and do not be overcome by their looks, for they are an uncontrolled people.

And you, son of man, take a sharp sword, using it like a haircutter's blade, and making it go over your head and the hair of your chin: and take scales for separating the hair by weight.

Son of man, say as a prophet, These are the words of the Lord: Say, A sword, a sword which has been made sharp and polished:

It has been made sharp to give death; it is polished so that it may be like a thunder-flame: ...

And I have given it to the polisher so that it may be taken in the hand: he has made the sword sharp, he has had it polished, to put it into the hand of him who gives death.

And there will no longer be a plant with sharp points wounding the children of Israel, or a thorn troubling them among any who are round about them, who put shame on them; and they will be certain that I am the Lord.