אַל־יֹאמְר֣וּ בְ֭לִבָּם הֶאָ֣ח נַפְשֵׁ֑נוּ אַל־יֹ֝אמְר֗וּ בִּֽלַּעֲנֽוּהוּ׃
Let them not say in their heart: 'Aha, we have our desire'; Let them not say: 'We have swallowed him up.'
Read midrashic interpretation of Psalms 35:25: and classical rabbinic exegesis.