And it came to pass on the next day, that Moses said unto the people, you have sinned a great sin: and now I will go up unto the LORD; perhaps I shall make an atonement for your sin.
All Commentaries on Exodus 32:30 Go To Exodus 32
Jerome
AD 420
By a threefold confession Peter blotted out his threefold denial. If Aaron committed sacrilege by fashioning molten gold into the head of a calf, his brother’s prayers made amends for his transgressions. If holy David, meekest of men, committed the double sin of murder and adultery, he atoned for it by a fast of seven days.