Matthew 11:21
[He said] "It will be too bad for you, Chorazin! It will be too bad for you, Bethsaida! For if the powerful miracles had been performed in [the cities of] Tyre and Sidon which were performed in your presence, they would have repented long ago, [demonstrating it] by wearing sackcloth [i.e., a coarse cloth made of goat hair] and throwing ashes [into the air].
Matthew 26:65
Then the head priest tore at his clothing [i.e., as an expression of frustration], saying, "He has spoken against God [i.e., by claiming Deity for Himself]. What additional need do we have for witnesses? Look, you [yourselves] have now heard him speaking against God.
Acts 14:14
But when the apostles Barnabas and Paul heard about what they were trying to do [to them], they tore their clothes [i.e., as an expression of frustration] and rushed over to the crowd and shouted,
Revelation 11:3
And I will give [authority] to my two witnesses and they will prophesy for 1,260 days, wearing sackcloth" [i.e., a black, coarse cloth made of goat's hair].
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