Paul brings forward three "I ams" in the text. I am under a great obligation. I am eager to share. I am not ashamed of the Gospel. All of these grow out of an understanding of the statement "righteousness of God from faith for faith."
So roll up your sleeves, put your mind in gear, be totally ready to receive the gift that’s coming when Jesus arrives. Don’t lazily slip back into those old grooves of evil, doing just what you feel like doing. You didn’t know any better then; you do now. As obedient children, let yourselves be pulled into a way of life shaped by God’s life, a life energetic and blazing with holiness. God said, “I am holy; you be holy. [1 Peter 1:13-16]