'Sharply' in the Bible

and warned them not to tell [publicly] who He was.

Peter took Him aside [to speak to Him privately] and began to reprimand Him, saying, “May God forbid it! This will never happen to You.”

And Jesus [deeply moved] admonished him sternly and sent him away immediately,

Then Jesus strictly warned them not to tell anyone about Him.

But He strictly warned and admonished them not to tell this to anyone,

For this reason I am writing these things while absent from you, so that when I come, I will not need to deal severely [with you], in my use of the authority which the Lord has given me [to be used] for building you up and not for tearing you down.

Do not sharply reprimand an older man, but appeal to him as [you would to] a father, to younger men as brothers,

This description is true. So rebuke them sharply so that they will be sound in the faith and free from doctrinal error,