'Altar' in the Bible

Then Joshua built an altar to the Lord, the God of Israel, on Mount Ebal,

just as Moses the servant of the Lord had commanded the sons of Israel, as it is written in the Book of the Law of Moses, an altar of uncut stones on which no one has wielded an iron tool; and they offered on it burnt offerings to the Lord, and sacrificed peace offerings.

Now on that day Joshua made them cutters and gatherers of firewood and water carriers for the congregation and for the altar of the Lord, to this day, in the place which He would choose.

When they came to the region of the Jordan which is in the land of Canaan, the sons of Reuben and the sons of Gad and the half-tribe of Manasseh built an altar there by the Jordan, an altar that was great to behold.

And the [other] sons of Israel heard it said, “Look, the sons of Reuben and the sons of Gad and the half-tribe of Manasseh have built an altar at the edge of the land of Canaan, in the region [west] of the Jordan, on the side belonging to the sons of Israel.”

“This is what the entire congregation of the Lord says, ‘What is this disloyal and unfaithful act which you have committed against the God of Israel, so as to turn away from following the Lord this day, by building yourselves an altar, to rebel against the Lord this day?

If, however, the land of your possession is unclean, then cross into the land of the possession of the Lord, where the Lord’s tabernacle is situated, and settle down among us. But do not rebel against the Lord, or rebel against us by building an altar for yourselves, besides the altar of the Lord our God [at Shiloh].

If we have built an altar for ourselves to turn away from following the Lord, or if [we did so] to offer a burnt offering or grain offering on it, or if to offer sacrifices of peace offerings on it, may the Lord Himself require it [of us and hold us responsible].

“So we said, ‘Let us prepare and build an altar, not for burnt offering or for sacrifice,

So we said, ‘If your descendants should say this to us or to our descendants in time to come, then we can reply, “See the copy of the altar of the Lord which our fathers made, not for burnt offering or for sacrifice, but rather it is a witness between us and you.”’

Far be it from us that we should rebel against the Lord and turn away from following the Lord this day, by building an altar for burnt offering, for grain offering or for sacrifice, besides the altar of the Lord our God which is before His tabernacle [in Shiloh].”

The sons of Reuben and the sons of Gad called the altar Witness; “For it is a witness between us that the Lord is God.”