Is this rebuke Biblical?

[Brian]

I am glad to see the topic of rebuking being discussed, because it seems to be one of many topics hardly mentioned in the church system, since the pro pastors don't want anyone examining them. I've had stumbles in my life, when I wish a believer had rebuked me beforehand. And even though it is not fun, I have rebuked people before. It is a responsibility, rather than turning a blind eye. It reminds me of 5 key parts of our faith: witnessing, teaching, being holy, sacrificing, and warning. Sometimes people don't want to hear warnings.