כִּ֚י אִם־בֹּ֣א אַתָּ֔ה עֲשֵׂ֖ה חֲזַ֣ק לַמִּלְחָמָ֑ה יַכְשִֽׁילְךָ֤ הָֽאֱלֹהִים֙ לִפְנֵ֣י אוֹיֵ֔ב כִּ֥י יֶשׁ־כֹּ֛חַ בֵּאלֹהִ֖ים לַעְז֥וֹר וּלְהַכְשִֽׁיל׃
Ngunit kung ikaw ay paroroon, kumilos ka at magpakatatag sa digmaan — gayunma'y ibubuwal ka ng Diyos sa harap ng kaaway, sapagkat ang Diyos ay may kapangyarihang tumulong at magpabagsak.”
Rashi
But if you come The meaning is: If you do not believe my words, will you not try [to put effort into your military campaign?] Come, do, and strengthen yourself for war.
Rashi
to help or to cause to stumble The meaning is: He has the strength to help you without the army of Ephraim and to cause you to stumble if you take them with you.