Numbers 22:6
Come now therefore, I pray you, curse me this people; for they are too mighty for me: peradventure I shall prevail, that we may smite them, and that I may drive them out of the land: for I know that he whom you bless is blessed, and he whom you curse is cursed.
Nave's Topical Index—AKJV

Numbers 23:11
And Balak said to Balaam, What have you done to me? I took you to curse my enemies, and, behold, you have blessed them altogether.
Nave's Topical Index—AKJV