Exodus 12:7
They are to take some of the blood and put it on the sides and tops of the doorframes of the houses where they eat the lambs.
Berean Standard Bible
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And they shall take of the blood, and strike it on the two side posts and on the upper door post of the houses, wherein they shall eat it.
They shall take some of the blood, and put it on the two door posts and on the lintel, on the houses in which they shall eat it.