It is not a coincidence that this was just posted and this Shabbats Torah Parasha is Balak. I am intending to write {bli neder} a discussion of this Parasha in the Torah section of the forum.
This Parasha contains the following 'curse' which is actually a blessing from Baalams mouth:
Numbers Chapter 23
7. He took up his parable and said, "Balak the king of Moab has brought me from Aram, from the mountains of the east [saying], 'Come, curse Jacob for me and come invoke wrath against Israel.'
8. How can I curse whom G-d has not cursed, and how can I invoke wrath if the Lord has not been angered?
9. For from their beginning, I see them as mountain peaks, and I behold them as hills; it is a nation that will dwell alone, and will not be reckoned among the nations.
10. Who counted the dust of Jacob or the number of a fourth of [or, of the seed of] Israel? May my soul die the death of the upright and let my end be like his."