Numbers 25:8-10

Young's Literal Translation

⁸ and goeth in after the man of Israel unto the hollow place, and pierceth them both, the man of Israel and the woman -- unto her belly, and the plague is restrained from the sons of Israel;

⁹ and the dead by the plague are four and twenty thousand.

¹⁰ And Jehovah speaketh unto Moses, saying,