'Door post' in the Bible

then his master shall bring him to God, and shall bring him to the door or to the doorpost, and his master shall bore his ear through with an awl, and he shall serve him for ever.

So Hannah rose up after they had eaten in Shiloh, and after they had drunk. Now Eli the priest was sitting on his seat by the doorpost of the temple of Yahweh.

in their setting of their threshold by my threshold, and their doorpost beside my doorpost, and there was [but] the wall between me and them; and they have defiled my holy name by their abominations which they have committed: therefore I have consumed them in my anger.