a blessing and a curse

Etymology
From the translation of  11:26 (“Behold, I set before you this day, a blessing and a curse.”).

Noun

 * 1) Something that is both a benefit and a burden, or that may seem initially beneficial but also brings unforeseen negative consequences

Translations

 * Chinese:
 * Mandarin:, 既是好事，也是壞事
 * Finnish: sekä siunaus että kirous
 * German: Segen und Fluch, Fluch und Segen
 * Polish: miecz obosieczny
 * Portuguese: uma bênção e uma maldição