Our Creator has blessed each of us with certain gifts. It is our free will to put forth the effort to develop those gifts and our choice in how we use them. We can decide to help others and honor Him or to use them for our own gain. When it comes to boasting rights, even our freewill and the opportunities we have to use our talents are gifts from the Lord.
Where is boasting then?
It is excluded, By what law? Of works?
No, but by the law of faith.
In faith, Jesus sacrificed Heaven to be born into a humble life. He asked only one thing in return; to take on the sins that separate us from His Father. In love, Jesus took the responsibility for our failures and sacrificed His life.
Greater love has no one than this, than to lay down one's life for his friends. (John 15:13)
Let us boast in love and faith.
Let us boast in Jesus Christ, Our Lord.