1 Tim. 5:19-20 - Accusations Against Leaders

19 Do not accept an accusation against an elder unless it can be confirmed by two or three witnesses.
20 Those guilty of sin must be rebuked before all, as a warning to the rest.“

Leaders Who Defame Jesus’ Name

Vs. 19: - “Do not accept an accusation against an elder unless it can be confirmed by two or three witnesses.”

"Do not accept an accusation" - Accusing a leader of misconduct is not to be accepted lightly. I do not mean accusations should be brushed off, or ignored. If someone brings an accusation, they should bring corroboration. This is a principle taught throughout the Bible. A witness or two is always required if a person is being accused of breaking the Law (both for leaders and non-leaders). See: Deut. 17:6, 19:15. The principle was reiterated by Jesus. Matt. 18:16. When a leader is accused, per the above procedure, action must be taken.

The encyclopedia of laws in the new covenant has been drastically reduced. The primary 'laws' of the church are: Love Jesus. Love one another. Make disciples.
All else follows those. From there it is common sense.
Ask yourself, "If I do this, will my love for (insert name here) be demonstrated to the non-believing world?"
Or, "Will my love for Jesus be seen?”
“Will He be glorified, or will He be profaned?"
If you can answer positively to these types of questions, or if the Holy Spirit does not convict your spirit, then your action is acceptable.

Censuring an elder of the church is not to be done on a whim. Rebuking an elder may bring shame on the church. Letting a leader offend without reprimand will bring even more shame. It has to be done. Just know there will be a cost, and sometimes that cost must be paid.

Vs. 20: - “Those guilty of sin must be rebuked before all, as a warning to the rest.“

"Those guilty of sin must be rebuked..." - If a leader is the offender, that person is not free from consequences. Look back to chapter 3 and the character requirements of elders and deacons. The phrase 'above reproach' jumps out. The leaders of the church must never defame the name of Jesus.
What sullies the reputation of the body of believers the most? Doesn't your heart drop when you hear on the news, "Pastor John Doe of the Big City Church congregation has been arrested for..."? That church had no one that exhorted or rebuked the leader. His misdeeds multiplied until he became a criminal.
A church should never cover up bad behavior. Which was worse for the Catholic Church - priests committing sexual abuse, or the coverup of the crimes?
When someone fails, we are to help restore such a one, even and especially our leaders. See: James 5:16.