'Altar' in the Bible

Then Gideon built an altar there to Yahweh, and called it "Yahweh is Peace." To this day it is still in Ophrah of the Abiezrites.

It happened the same night, that Yahweh said to him, "Take your father's bull, even the second bull seven years old, and throw down the altar of Baal that your father has, and cut down the Asherah that is by it;

and build an altar to Yahweh your God on the top of this stronghold, in an orderly way, and take the second bull, and offer a burnt offering with the wood of the Asherah which you shall cut down."

When the men of the city arose early in the morning, behold, the altar of Baal was broken down, and the Asherah was cut down that was by it, and the second bull was offered on the altar that was built.

Then the men of the city said to Joash, "Bring out your son, that he may die, because he has broken down the altar of Baal, and because he has cut down the Asherah that was by it."

Joash said to all who stood against him, "Will you contend for Baal? Or will you save him? He who will contend for him, let him be put to death while [it is yet] morning. If he is a god, let him contend for himself, because someone has broken down his altar."

Therefore on that day he named him Jerub-Baal, saying, "Let Baal contend against him, because he has broken down his altar."

For it happened, when the flame went up toward the sky from off the altar, that the angel of Yahweh ascended in the flame of the altar: and Manoah and his wife looked on; and they fell on their faces to the ground.

It happened on the next day that the people rose early, and built there an altar, and offered burnt offerings and peace offerings.