and must bring a flawless ram from the flock, convertible into silver shekels, for a guilt offering to the priest. So the priest will make atonement on his behalf for his error which he committed(although he himself had not known it) and he will be forgiven.
TSK
TSK · Hebrews 9:7
Treasury of Scripture Knowledge references in NET.
This is to be a perpetual statute for you to make atonement for the Israelites for all their sins once a year.” So he did just as the LORD had commanded Moses.
But Manasseh misled the people of Judah and the residents of Jerusalem so that they sinned more than the nations whom the LORD had destroyed ahead of the Israelites.
For forty years I was continually disgusted with that generation, and I said,‘These people desire to go astray; they do not obey my commands.’
The leaders of this nation were misleading people, and the people being led were destroyed.
Therefore I will again do an amazing thing for these people– an absolutely extraordinary deed. Wise men will have nothing to say, the sages will have no explanations.”
Fast runners will find no place to hide; strong men will have no strength left; warriors will not be able to save their lives.
He has no need to do every day what those priests do, to offer sacrifices first for their own sins and then for the sins of the people, since he did this in offering himself once for all.
But in those sacrifices there is a reminder of sins year after year.