I change not — I have an unchangeable hatred to sin: and my long suffering also changeth not, therefore you are not consumed in your sins. Not consumed — God is the same in his wisdom to order the rewards of good and bad in the fittest season, therefore neither the one nor the other are consumed, but preserved to the season appointed of God.
Related Commentaries of Malachi 3:6
Malachi 3:6
6 For I am the LORD, I change not; therefore ye sons of Jacob are not consumed.