14 What then shall we say? Is God unjust? Not at all! 15 For He says to Moses, "I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion." 16 It does not, therefore, depend on man's desire or effort, but on God's mercy. 17 For the Scripture says to Pharaoh: "I raised you up for this very purpose, that I might display My power in you and that My Name might be proclaimed in all the earth."18 Therefore God has mercy on whom He wants to have mercy, and He hardens whom He wants to harden.
19 One of you will say to me: "Then why does God still blame us? For who resists His will?" 20 But who are you, O man, to talk back to God? "Shall what is formed say to him who formed it, 'Why did you make me like this?' "21 Does not the potter have the right to make out of the same lump of clay some pottery for noble purposes and some for common use?
22 What if God, choosing to show His wrath and make His power known, bore with great patience the objects of His wrath—prepared for destruction? 23 What if He did this to make the riches of His glory known to the objects of His mercy, whom He prepared in advance for glory— [emphasis mine]
I am clay in the hands of Jesus.
But... am I soft and plyable in the Master's hands? He knows what He wants to make us - He knows the purpose for our lives. He is the Creator - the Artist - the Master Designer making us fit for the Kingdom - while He draws us to Himself in Jesus Christ!