'Mercy' in the Bible

If by chance there are fifty upright men in the town, will you give the place to destruction and not have mercy on it because of the fifty upright men?

And the Lord said, If there are fifty upright men in the town, I will have mercy on it because of them.

And he said, See now, I have undertaken to put my thoughts before the Lord: what if there are twenty there? And he said, I will have mercy because of the twenty.

And he said, O let not the Lord be angry and I will say only one word more: by chance there may be ten there. And he said, I will have mercy because of the ten.

But while he was waiting, the men took him and his wife and his daughters by the hand, for the Lord had mercy on them, and put them outside the town.

See now, your servant has had grace in your eyes and great is your mercy in keeping my life from destruction, but I am not able to get as far as the mountain before evil overtakes me and death;

And he said, O Lord, the God of my master Abraham, let me do well in what I have undertaken this day, and give your mercy to my master Abraham.

Then Esau, lifting up his eyes, saw the women and the children, and said, Who are these with you? And he said, The children whom God in his mercy has given to your servant.

And may God, the Ruler of all, give you mercy before the man, so that he may give you back your other brother and Benjamin. If my children are to be taken from me; there is no help for it.

And Israel said to Joseph, I had no hope of seeing your face again, but God in his mercy has let me see you and your children.