'Wall' in the Bible

The priest will present it at the altar and must wring off its head and turn [it] into smoke on the altar, and its blood will be drained out on the wall of the altar.

And he shall examine the infection, and {if} the infection on the house's wall [has] yellowish-green or reddish spots and its appearance [is] deeper than [the surface of] the wall,

And the priest shall return on the seventh day, and he shall examine [the infection], and {if} the infection has spread on the house's wall,

However, village houses that have no surrounding wall shall be considered {open country}; [there] is redemption for it, and in the Jubilee it shall go out [of the buyer's hand].