1 Kings 4:26 says, “[King] Solomon…had 40,000 stalls of horses for his chariots, and 12,000 horsemen.”
2 Chronicles 9:25 says, “And Solomon had 4,000 stalls for horses and chariots, and 12,000 horsemen, whom he stationed in the chariot cities and with the king in Jerusalem.”
This is a definite contradiction.