But it won't stick otherwise

Although mortals can and clearly do curse, their maledictions do not have much effect unless the divine world gives its consent and allows the curses to have impact. This hinges on the assumption that a curse cannot be fully efficacious (that is, become energized/active) without some form of heavenly recognition and support.— Cursed Are You!, page 153

<idle musing>
Indeed. This continues the thoughts from yesterday...without the recognition/support/blessing of God, the curse "won't stick" so to speak. That, again, is what Proverbs 26:2 is all about. (Now I need to go read what BHQ and HBCE say about that qere/ketiv pair...)
</idle musing>