“For it is by grace you are saved, through trusting Him; it is not your own doing. It is God’s gift, not a reward for work done. There is nothing for anyone to boast of. For we are God’s handiwork, created in Christ Jesus to devote ourselves to the good deeds for which God has designed us.”
A pot is created by the potter for a certain purpose. On the wheel, the potter gives the clay the shape of the pot. The clay only submits to the hands of the creator. So it is with God’s children: we submit to God. We “devote ourselves to the good deeds for which God has designed us.”
And “we are God’s handiwork” just as pots are the handiwork of the potter. We have no right to complain to our Creator just as we have no right — or for that matter — reason to boast that somehow through works we save ourselves.
Paul is clear: we are saved by the gift of trust; for this is what faith is: trust. We trust Christ. We trust that He fulfills the Law, satisfies His Father’s wrath against sin, and loves us as friends. We are designed for specific “good deeds” by God Himself; and this, too, is not of our doing. To God belongs all the glory.