'Altar' in the Bible

“By presenting defiled food on My altar.”You ask: “How have we defiled You?”When you say: “The Lord’s table is contemptible.”

“I wish one of you would shut the temple doors, so you would no longer kindle a useless fire on My altar! I am not pleased with you,” says the Lord of Hosts, “and I will accept no offering from your hands.

And this is another thing you do: you cover the Lord’s altar with tears, with weeping and groaning, because He no longer respects your offerings or receives them gladly from your hands.