LXX Num 24:10

καὶ ἐθυμώθη Βαλὰκ ἐπὶ Βαλαάμ, καὶ συνεκρότησεν ταῖς χερσὶν αὐτοῦ. καὶ εἶπεν Βαλὰκ πρὸς Βαλαάμ Καταρᾶσθαι τὸν ἐχθρόν μου κέκληκά σε, καὶ ἰδοὺ εὐλογῶν εὐλόγησας τρίτον τοῦτο.

Then Balak’s anger burned against Balaam, and he struck his hands together and said to Balaam, “I summoned you to curse my enemies, but behold, you have persisted in blessing them these three times.