וְאִם־לֹ֤א תַעֲשׂוּן֙ כֵּ֔ן הִנֵּ֥ה חֲטָאתֶ֖ם לַיהוָ֑ה וּדְעוּ֙ חַטַּאתְכֶ֔ם אֲשֶׁ֥ר תִּמְצָ֖א אֶתְכֶֽם׃
But if ye will not do so, behold, ye have sinned against the LORD; and know ye your sin which will find you.
Read midrashic interpretation of Numbers 32:23: and classical rabbinic exegesis.