3 Bible Verses about Beating Oneself

but I beat down my body, and bring it into subjection, lest perhaps, when I have been a herald to others, I should myself be rejected as unworthy.

But the publican, standing afar off, would not even lift up his eyes to heaven; but smote his breast, saying, O God, be merciful to me a sinner!

And all the multitudes that had come together to that sight, when they had seen the things which were done, returned, beating their breasts.