Exodus 32:28-30

Living Bible

²⁸ So they did, and about three thousand men died that day.

²⁹ Then Moses told the Levites, “Today you have ordained yourselves for the service of the Lord, for you obeyed him even though it meant killing your own sons and brothers; now he will give you a great blessing.”

³⁰ The next day Moses said to the people, “You have sinned a great sin, but I will return to the Lord on the mountain—perhaps I will be able to obtain his forgiveness for you.”