'Door posts' in the Bible
They shall take some of the blood, and put it on the two doorposts and on the lintel, on the houses in which they shall eat it.
You shall take a bunch of hyssop, and dip it in the blood that is in the basin, and strike the lintel and the two doorposts with the blood that is in the basin; and none of you shall go out of the door of his house until the morning.
For Yahweh will pass through to strike the Egyptians; and when he sees the blood on the lintel, and on the two doorposts, Yahweh will pass over the door, and will not allow the destroyer to come in to your houses to strike you.
You shall write them on the door posts of your house, and on your gates.
You shall write them on the door posts of your house, and on your gates;
For the entrance of the oracle he made doors of olive wood: the lintel [and] door posts were a fifth part [of the wall].
So also made he for the entrance of the temple door posts of olive wood, out of a fourth part [of the wall];
Blessed is the man who hears me, watching daily at my gates, waiting at my door posts.
As for the temple, the door posts were squared; and as for the face of the sanctuary, the appearance [of it] was as the appearance [of the temple].
The priest shall take of the blood of the sin offering, and put it on the door posts of the house, and on the four corners of the ledge of the altar, and on the posts of the gate of the inner court.