Moses
Numbers 25:9ESV·traditional attribution

Nevertheless, those who died by the plague were twenty-four thousand.

John Calvin Reformed @genevareformer

9. And those that died in the plague. Paul, when he says that only twenty-three thousand died, appears to differ from Moses; but we know that the exact account of numbers is not always observed, and it is probable that about twenty-four thousand were slain. Paul, therefore, subtracted one thousand, and was content with the lesser number; C.

Matthew Henry Presbyterian @wholebiblehenry

Here is a remarkable contest between wickedness and righteousness, which shall be most bold and resolute; and righteousness carries the day, as no doubt it will at last. I. Never was vice more daring than it was in Zimri, a prince of a chief house in the tribe of Simeon.

Commenting on Numbers 25:6-15

John Gill Reformed Baptist @doctorgill

And those that died in the plague were twenty and four thousand. The apostle says 23,000 Co1 10:8. Moses includes those that were hanged against the sun, in the time of the plague, as well as those that were taken off by it, even all that died on this account; the apostle only those that "fell", which cannot with propriety be said of those that...