'Altar of the Lord' in the Bible

And thou shalt offer thy burnt offerings, the flesh and the blood, upon the altar of the LORD thy God: and the blood of thy sacrifices shall be poured out upon the altar of the LORD thy God, and thou shalt eat the flesh.

Thou shalt not plant thee a grove of any trees near unto the altar of the LORD thy God, which thou shalt make thee.

And the priest shall take the basket out of thine hand, and set it down before the altar of the LORD thy God.

Thou shalt build the altar of the LORD thy God of whole stones: and thou shalt offer burnt offerings thereon unto the LORD thy God: