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 3:2

3:2 Who can endure the day of his coming? Who can keep standing when he appears? For he will be like a refiner’s fire, like a launderer’s soap.