The lie of Kavanaugh (a non-assault lie), by a court officer. So, can you and I lie in court too?

https://www.dailykos.com/stories/2018/10/6/1802193/-The-lie-non-assault-of-Kavanaugh-a-court-officer-Can-I-lie-in-court-too-Can-you-A-justice?utm_campaign=recent
"If an officer of the court does not need to testify truthfully, then why does anyone facing the justice system of the US need to bear witness truthfully?"