'Mercy' in the Bible

The Lord is slow to wrath and great in mercy, overlooking wrongdoing and evil, and will not let wrongdoers go free; sending punishment on children for the sins of their fathers, to the third and fourth generation.

May the sin of this people have forgiveness, in the measure of your great mercy, as you have had mercy on them from Egypt up till now.

And the Lord said, I have had mercy, as you say:

Because he had no respect for the word of the Lord, and did not keep his law, that man will be cut off without mercy and his sin will be on him.