2 Chronicles 13:18
“Thus the children of Israel were brought under at that time, and the children of Judah prevailed, because they relied upon the Lord God of their fathers.”
And the children of Israel fled before Judah: and God delivered them into their hand.
And Abijah and his people slew them with a great slaughter: so there fell down slain of Israel five hundred thousand chosen men.
Thus the children of Israel were brought under at that time, and the children of Judah prevailed, because they relied upon the Lord God of their fathers.
And Abijah pursued after Jeroboam, and took cities from him, Beth–el with the towns thereof, and Jeshanah with the towns thereof, and Ephrain with the towns thereof.
Neither did Jeroboam recover strength again in the days of Abijah: and the Lord struck him, and he died.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Related Verses
“And the children of Israel fled before Judah: and God delivered them into their hand.”
“Then the men of Judah gave a shout: and as the men of Judah shouted, it came to pass, that God smote Jeroboam and all Israel before Abijah and Judah.”
“And when Judah looked back, behold, the battle was before and behind: and they cried unto the Lord, and the priests sounded with the trumpets.”
“And Judah was put to the worse before Israel, and they fled every man to his tent.”
“And he gathered all Judah and Benjamin, and the strangers with them out of Ephraim and Manasseh, and out of Simeon: for they fell to him out of Israel in abundance, when they saw that the Lord his God was with him.”