'Mercy' in the Bible

No, indeed; the solution is found in His words to Moses, "Wherever I show mercy it shall be nothing but mercy, and wherever I show compassion it shall be simply compassion."

And from this we learn that everything is dependent not on man's will or endeavour, but upon God who has mercy. For the Scripture said to Pharaoh,

This is a proof that wherever He chooses He shows mercy, and wherever he chooses He hardens the heart.

in order to make known His infinite goodness towards the subjects of His mercy whom He has prepared beforehand for glory,

but just as you were formerly disobedient to Him, but now have received mercy at a time when they are disobedient,

so now they also have been disobedient at a time when you are receiving mercy; so that to them too there may now be mercy.

For God has locked up all in the prison of unbelief, that upon all alike He may have mercy.

and that the Gentiles also have glorified God in acknowledgment of His mercy. So it is written, "For this reason I will praise Thee among the Gentiles, and sing psalms in honour of Thy name."