3 Bible Verses about Beating Oneself

but I bruise my body and keep it in subjection, lest having called others to the contest, I should myself be disqualified.

"But the tax-gatherer, standing far back, would not lift up so much as his eyes to heaven, but kept beating his breast and saying, "'O God be merciful to me, the sinner!'

And all the crowds who had assembled to see this spectacle, after witnessing what had been done, were returning beating upon their breast.