And he said,

And he said, I will make all my goodness pass before thee, and I will proclaim the name of the LORD before thee; and will be gracious to whom I will be gracious, and will shew mercy on whom I will shew mercy. (Exodus 33:19)
God's will is His own and no man may triumph over it. Nor can any man judge whom God ought show mercy or grace. The motives of God are His own. And they are good. How thankful we ought be when we recognize that we, the redeemed, are the objects of that very mercy! Rejoice, believer, that though undeserving, you have become the eternal recipient of such unmerited favour!