2 Samuel 24:8-10

Complete Jewish Bible

⁸ When they were done going through all the land, they came back to Yerushalayim; it had taken nine months and twenty days. ⁹ Yo’av reported the results of the census to the king: there were in Isra’el 800,000 valiant men who could handle a sword, while the men of Y’hudah numbered 500,000.

¹⁰ But after he had taken the census, David was conscience-stricken. David said to Adonai, “I have greatly sinned in what I have done. But now, Adonai, please! Put aside your servant’s sin, for I have done a very foolish thing.”