Misinterpretations often twist this verse into a permanent ethnic or national rejection of all northern Israelites or a justification for isolationism and prejudice, overlooking the specific context of Israel's rampant idolatry that severed their covenant relationship with God at that time; it neither endorses blanket discrimination nor ignores the possibility of individual faithfulness but specifically cautions against spiritually compromising partnerships that dilute reliance on the Lord.
II Chronicles 25:7
King James Version (1769)
7 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.
This passage reveals the core truth that God calls His people to depend entirely on His presence and favor rather than bolstering their efforts with alliances or forces lacking divine approval, as the man of God warns King Amaziah against employing Israelite mercenaries because the Lord was not with idolatrous Israel, highlighting the priority of obedience to God's word over human might and strategic plans for true success in battle.