Whereas thou didst formerly receive and enjoy these mercies for thy hurt, through thy own wicked and foolish heart, when thou wast full and fat, forgetting God, and kicking against him, Deu_31:20 32:15, now thou shalt have them for thy good; thy heart shall be so changed by the grace of the gospel that thou shalt not now abuse them, but employ them to the more cheerful and faithful service of God, the giver of them. Rejoice over thee for good, i.e. to do thee good; as he did rejoice to destroy thee, Deu_28:63.