וְעַתָּה֩ לְכָה־נָּ֨א אָֽרָה־לִּ֜י אֶת־הָעָ֣ם הַזֶּ֗ה כִּֽי־עָצ֥וּם הוּא֙ מִמֶּ֔נִּי אוּלַ֤י אוּכַל֙ נַכֶּה־בּ֔וֹ וַאֲגָרְשֶׁ֖נּוּ מִן־הָאָ֑רֶץ כִּ֣י יָדַ֗עְתִּי אֵ֤ת אֲשֶׁר־תְּבָרֵךְ֙ מְבֹרָ֔ךְ וַאֲשֶׁ֥ר תָּאֹ֖ר יוּאָֽר׃
Shenei Luchot HaBerit
ועתה לך נא ארה לי. We learn from Balak inviting Bileam: "Now go and curse for me," how careful one has to be when one utters any words, even if one has no negative intention. Words have a habit of backfiring. Balak wound up cursing himself rather than Israel.