Exodus 12:7

7 Then 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.

Read Exodus 12:7 Using Other Translations

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.
"Then they shall take some of the blood and put it on the two doorposts and the lintel of the houses in which they eat it.
They are to take some of the blood and smear it on the sides and top of the doorframes of the houses where they eat the animal.