Malachi 1:9 - Albert Barnes' Notes on the Bible

And now entreat, I pray you, God ^o that He will be gracious unto you - This is not a call to repentance, for he assumes that God would not accept them. It is rather irony; “go now, seek the favor of God, as ye would not that of your governor.” “From your hand,” not from your fathers, not from aliens, “hath this been: will He accept persons from you?” The unusual construction seems to imply a difference of meaning; as if he would say, that it consisted not with the justice of God, that He should be an “accepter of persons,” (which He declares that He is not) which yet He would be, were He to accept them, while acting thus.