'Altar of the Lord' in the Bible

In this: that ye offer unclean bread upon mine altar. And if ye will say, 'Wherein have we offered any unclean thing unto thee?' In this that ye say: the altar of the LORD is not to be regarded.

But ye have unhallowed it, in that ye say, 'The altar of the LORD is not to be regarded, and the thing that is set thereupon, not worthy to be eaten.'

And this have ye done again, covering the altar of the LORD with tears, with weeping, and with crying out, insomuch that he regardeth not the offering any more, or receiveth it with good will at your hand.