3 Bible Verses about Beating Oneself

But I keep under my body, and bring it into subjection, lest by any means, after having preached to others, I myself should become a reprobate.

And the publican standing afar off, would not so much as lift up his eyes to heaven, but smote upon his breast, saying, God be merciful to me a sinner.

And all the people who had come together to that sight, beholding the things which were done, returned, smiting their breasts.