'Mercy' in the Bible

But my mercy shall not depart away from him, as I took it from Saul, whom I put away before thee.

And the king said, “Is there no longer anyone left of the house (family) of Saul to whom I may show the goodness and graciousness of God?” Ziba replied to the king, “There is still a son of Jonathan, [one] whose feet are crippled.”

He said, "When the child [was] still alive, I fasted and I wept because I thought, 'Who knows? Yahweh may have mercy on me that the child will live.'

Whereas thou camest but yesterday, should I this day make thee go up and down with us? seeing I go whither I may, return thou, and take back thy brethren: mercy and truth be with thee.

The king had mercy on Mephibosheth son of Jonathan, the son of Saul, in light of the Lord's oath that had been taken between David and Jonathan son of Saul.

On him who has mercy you will have mercy; to the upright you will be upright;

You have given me the breastplate of your salvation, and your mercy has made me great.

He is the tower of salvation for his king: and sheweth mercy to his anointed, unto David, and to his seed for evermore.

So David replied to Gad, "This is a very difficult choice for me to make! Let me now please fall into the hand of the LORD, since his mercy is very great, but may I never fall into human hands!"