'Sharp pointed' in the Bible

Then his master is to take him to the gods of the house, and at the door, or at its framework, he is to make a hole in his ear with a sharp-pointed instrument; and he will be his servant for ever.

Then take a sharp-pointed instrument, driving it through his ear into the door, and he will be your servant for ever. And you may do the same for your servant-girl.

Will you put sharp-pointed irons into his skin, or fish-spears into his head?

The sword may come near him but is not able to go through him; the spear, or the arrow, or the sharp-pointed iron.