Malachi 1:7

1:7 You 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!

Malachi 1:9

1:9 But now plead for God’s favor that he might be gracious to us. “With this kind of offering in your hands, how can he be pleased with you?” asks the Lord who rules over all.

Malachi 2:13

2:13 You also do this: You cover the altar of the Lord with tears as you weep and groan, because he no longer pays any attention to the offering nor accepts it favorably from you.

Malachi 3:3

3:3 He will act like a refiner and purifier of silver and will cleanse the Levites and refine them like gold and silver. Then they will offer the Lord a proper offering.