'Mercy' in the Bible

But my mercy will not be taken away from him, as I took it from him who was before you.

And he said, While the child was still living I went without food and gave myself up to weeping: for I said, Who is able to say that the Lord will not have mercy on me and give the child life?

It was only yesterday you came to us; why then am I to make you go up and down with us? for I have to go where I may; go back then, and take your countrymen with you, and may the Lord's mercy and good faith be with you.

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.

Great salvation does he give to his king; he has mercy on the king of his selection, David, and on his seed for ever.