'Mercy' in the Bible

Thou by thy mercy hast led forth the people that thou hast redeemed; Thou hast guided them by thy strength unto the abode of thy holiness.

and shewing mercy unto thousands of them that love me and keep my commandments.

And he said, I will make all my goodness pass before thy face, and I will proclaim the name of Jehovah before thee; and I will be gracious to whom I will be gracious, and I will shew mercy on whom I will shew mercy.

keeping mercy unto thousands, forgiving iniquity and transgression and sin, but by no means clearing the guilty; visiting the iniquity of the fathers upon the children, and upon the children's children, upon the third and upon the fourth generation.