Malachi 1:6-7

6"A son honors his father, and a servant his master. If then I am a father, where is my honor? And if I am a master, where is my fear? says the Lord of hosts to you, O priests, who despise my name. But you say, 'How have we despised your name?'

7By offering polluted food upon my altar. But you say, 'How have we polluted you?' By saying that the Lord's table may be despised.