כִּ֚י אִם־בֹּ֣א אַתָּ֔ה עֲשֵׂ֖ה חֲזַ֣ק לַמִּלְחָמָ֑ה יַכְשִֽׁילְךָ֤ הָֽאֱלֹהִים֙ לִפְנֵ֣י אוֹיֵ֔ב כִּ֥י יֶשׁ־כֹּ֛חַ בֵּאלֹהִ֖ים לַעְז֥וֹר וּלְהַכְשִֽׁיל׃
But if thou wilt go, and do engage never so valiantly in battle, God will cast thee down before the enemy; for God hath power to help, and to cast down.’
Read midrashic interpretation of II Chronicles 25:8: and classical rabbinic exegesis.