To repent means to show your vices and weaknesses to all. Repentance means taking responsibility for all of the bad things you have done, purifying your soul, and preparing to accept goodness.
When a kind man does not accept his mistakes and tries always to justify himself, he becomes an unkind man.
Do you have qualities which can be criticized and improved? Try to admit that this is so, and to find these qualities out by yourself.
Nothing can make a person's soul softer than the understanding of his own blame, and nothing can make one harder than the desire always to be right.
— After the Talmud
Those who cover their old sins with present-day good deeds remind me of moonlight which illuminates this dark world on a cloudy night.
— Dhammapada, a book of Buddhist Wisdom
A man will always understand his sins as well as his limits in this limitless world.