'Altar' in the Bible

Then one of the seraphim flew to me, and in his hand was a glowing coal that he had taken from the altar with tongs.

On that day there will be an altar to the Lord in the center of the land of Egypt and a pillar to the Lord near her border.

Therefore Jacob’s iniquity will be purged in this way,and the result of the removal of his sin will be this:when he makes all the altar stoneslike crushed bits of chalk,no Asherah poles or incense altars will remain standing.

Suppose you say to me, ‘We trust in the Lord our God.’ Isn’t He the One whose high places and altars Hezekiah has removed, saying to Judah and Jerusalem, ‘You are to worship at this altar’?

I will bring them to My holy mountainand let them rejoice in My house of prayer.Their burnt offerings and sacrificeswill be acceptable on My altar,for My house will be called a house of prayerfor all nations.”

All the flocks of Kedar will be gathered to you;the rams of Nebaioth will serve youand go up on My altar as an acceptable sacrifice.I will glorify My beautiful house.