אִם־יֹאמְרוּ֮ לְכָ֪ה אִ֫תָּ֥נוּ נֶאֶרְבָ֥ה לְדָ֑ם נִצְפְּנָ֖ה לְנָקִ֣י חִנָּֽם׃
If they say: ‘Come with us, Let us lie in wait for blood, Let us lurk for the innocent without cause;
Rashi on Proverbs
let us hide for the innocent, without cause Scripture states that their hiding for the innocent is without cause.