Here we'll talk about which type of false oaths would obligate a witness to bring a korban (offering). Mishnah says: The witnesses would be obligated to bring a korban for intentionally violating the prohibition of making a false oath. They knew the testimony. They knew they were forbidden to swear falsely. They knew that if one does that, they would have to bring a korban chatat (sin offering). And that's the scenario. Triple threat. Every one of these pans out. They violated it and they swore falsely.
Also, they would have to bring a korban chatat for unintentionally violating the issur (prohibition), while denying the testimony on purpose. What does that mean? They made a false oath, but they didn't know it would obligate them to bring a korban chatat. They knew that what they did was wrong, but they never knew the ramifications of what would happen. So, they knew the testimony. They knew that it was forbidden for them to lie, but they didn't know that they would have to bring a korban; they didn't realize the ramifications.
But they are not obligated to bring a korban for completely unintentionally violating this issur of making a false oath. In this case, they swore because they made a mistake. They believed they had nothing to testify to, but later on they remembered that they actually knew something. So, in that case, we do not obligate them to bring a korban. People who are sinning unintentionally totally didn't realize that they knew something.
Now, we'll talk about the penalty for a false oath under testimony. What's the obligation for intentionally violating the prohibition of making a false oath? In other words, we're talking about both cases over here. Korban. Korban oleh veyored (variable offering). You have to bring a korban oleh veyored. We haven't mentioned that yet. We mentioned it out of the Mishnah, but in the words of the Mishnah, we're mentioning it for the first time. What is the obligation for the violation of making a false oath over here in this scenario? A korban oleh veyored.