Malachi 1:6-7

6“A son naturally honors his father and a slave respects his master. If I am your father, where is my honor? If I am your master, where is my respect? The Lord who rules over all asks you this, you priests who make light of my name! But you reply, ‘How have we made light of your name?’

7You are offering improper sacrifices on my altar, yet you ask, ‘How have we offended you?’ By treating the table of the Lord as if it is of no importance!