King James Version (KJV)
But if thou wilt go, do it, be strong for the battle: God shall make thee fall before the enemy: for God hath power to help, and to cast down.
Modern English
But if you go, act, be strong for the battle. Why should God cause you to fall before the enemy? For God has power to help or to cause to fall.
Hebrew
כִּ֠י אִ֠ם בָּ֡א עֲשֵׂ֡ה חֲ֠זַ֡ק לַ֠מִּלְחָ֡מָה יַ֠כְשִׁ֠ילְ֡ךָ הָ֠אֱלֹהִ֡ים לִ֠פְנֵ֡י אוֹיֵ֡ב כִּ֠י יֶ֠שׁ כֹּ֠חַ בֵּ֠אלֹ֠הִ֡ים לַ֠עְזוֹר֩ וּ֠לְהַ֠כְשִֽׁיל׃
kiy ʾim baʾ ʿasheh ḥazaq lamilḥamah yakshiylka haʾelohiym lipney ʾvoyeb kiy yesh koḥa beʾlohiym laʿzvor vlhakshiyl