King James Version (KJV)
But there came a man of God to him, saying, O king, let not the army of Israel go with thee; for the LORD is not with Israel, to wit, with all the children of Ephraim.
Modern English
But a man of God came to him and said: O king, do not let the army of Israel go with you, for the LORD is not with Israel, with all these Ephraimites.
Hebrew
וְ֠אִ֠ישׁ הָ֠אֱלֹ֠הִ֡ים בָּ֠א אֵ֠לָ֡יו לֵ֠אמֹ֡ר הַ֠מֶּ֡לֶךְ אַ֠ל יָ֠בֹ֡א עִמְּ֠ךָ֡ צְבָ֠א יִשְׂרָאֵ֡ל כִּ֠י אֵ֠ין יְהוָ֡ה עִ֠ם יִשְׂרָאֵ֡ל כֹּ֠ל בְּ֠נֵ֡י אֶפְרָֽיִם׃
vʾiysh haʾelohiym baʾ ʾelayv leʾmor hamelek ʾal yaboʾ ʿimka ṣbaʾ yishraʾel kiy ʾeyn yhvah ʿim yishraʾel kol bney ʾeprayim