'Door posts' in the Bible
They must take some of the blood and put it on the two doorposts and the lintel of the houses where they eat them.
The blood shall be a sign for you on [the doorposts of] the houses where you live; when I see the blood I shall pass over you, and no affliction shall happen to you to destroy you when I strike the land of Egypt.
Take a cluster of hyssop, dip it in the blood that is in the basin, and brush the lintel and the two doorposts with some of the blood in the basin. None of you may go out the door of his house until morning.
When the Lord passes through to strike Egypt and sees the blood on the lintel and the two doorposts, He will pass over the door and not let the destroyer enter your houses to strike you.
then his master must bring him to the judges, and he will bring him to the door or the doorposts, and his master will pierce his ear with an awl, and he shall serve him forever.
Write them on the doorposts of your house and on your gates.
And thou shalt write them upon the door posts of thine house, and upon thy gates:
Meanwhile, Samson had sex until midnight, then at midnight he got up, grabbed the doors, the two door posts, and the bars of the city gate, and uprooted them. He put them on his shoulders and carried them to the top of the mountain opposite Hebron.
For the entrance of the inner sanctuary, he made olive wood doors. The pillars of the doorposts were five-sided.
In the same way, he made four-sided olive wood doorposts for the sanctuary entrance.
All the doors and doorposts had rectangular frames, the openings facing each other in three tiers.
At that time Hezekiah stripped the gold from the doors of the Lord’s sanctuary and from the doorposts he had overlaid and gave it to the king of Assyria.
O the happiness of the man hearkening to me, To watch at my doors day by day, To watch at the door-posts of my entrance.
And the doorposts moved at the voice of the one who cried, and the house was filled with smoke.
Behind the doors and the doorposts you have set up your pagan sign." For in deserting me you have uncovered your bed you have climbed up into it and have opened it wide. And you have made a pact for yourself with them; you have loved their bed, you have looked on their private parts.
Then went he in, and measured the door posts, which were two cubits thick: but the door itself was six cubits, and the breadth of the door was seven cubits.
The door posts, and the narrow windows, and the galleries round about on their three stories, over against the door, cieled with wood round about, and from the ground up to the windows, and the windows were covered;
The doorposts of the great hall were square, and the front of the sanctuary had the same appearance.
Whenever they placed their threshold next to My threshold and their doorposts beside My doorposts, with only a wall between Me and them, they were defiling My holy name by the detestable acts they committed. So I destroyed them in My anger.
The priest must take some of the blood from the sin offering and apply it to the temple doorposts, the four corners of the altar’s ledge, and the doorposts of the gate to the inner court.
I saw the Lord standing beside the altar as he was saying, "Strike the doorposts so that the thresholds tremble, bringing them down on the heads of all of them. Those who survive I will kill with the sword. Those who flee will not escape. There will be no deliverance for the fugitives.
By faith he kept the Passover and the sprinkling of the blood [on the doorposts], so that the destroyer of the firstborn would not touch them (the firstborn of Israel).