To be cursed means the opposite of being blessed by God. To be blessed by God means to experience God’s favour, which finds expression in God working all things for the well-being of those who please him. To be cursed means to experience God’s disfavour, which finds expression in God working all things for the ruin of those who displease him.
9 You are cursed with a curse, for you are robbing me, the whole nation of you.