'Have Mercy' in the Bible

"Blessed are those who show mercy, for they will have mercy shown them.

But the tax-collector stood at a distance and would not even lift his eyes to heaven, but continued to beat his breast, and say, 'O God, have mercy on me, a sinner!'

For He says to Moses, "I will have mercy on any man that I choose to have mercy on, and take pity on any man that I choose to take pity on."

so they too are now disobedient because of the mercy shown you, that they too may now have mercy shown them.

For God has locked up all mankind in the prison of disobedience so as to have mercy on them all.