'Altar' in the Bible

If therefore when you are offering your gift upon the altar, you remember that your brother has a grievance against you,

leave your gift there before the altar, and go and make friends with your brother first, and then return and proceed to offer your gift.

And you say, "'Whoever swears by the altar, it is nothing; but whoever swears by the offering lying on it is bound by the oath.'

"You are blind! Why, which is greater? --the offering, or the altar which makes the offering holy?

He who swears by the altar swears both by it and by everything on it;

that all the innocent blood shed upon earth may come on you, from the blood of righteous Abel to the blood of Zechariah the son of Berechiah whom you murdered between the Sanctuary and the altar.