Exodus 32:29-31

King James Version

²⁹ For Moses had said, Consecrate yourselves today to the Lord, even every man upon his son, and upon his brother; that he may bestow upon you a blessing this day.

³⁰ And it came to pass on the morrow, that Moses said unto the people, Ye have sinned a great sin: and now I will go up unto the Lord; peradventure I shall make an atonement for your sin.

³¹ And Moses returned unto the Lord, and said, Oh, this people have sinned a great sin, and have made them gods of gold.