When I first came to know the Lord, I had a really good Christian friend who had times when he was knowingly sinning and I called him out on it. Their reply without fail would be “Well, God is still working in me. If He wanted to, He could remove this desire from me, and I would be clean.” Although that is true, we still have to continue to do what we can.
If we continue to read the next few verses, we will learn that if we have died to sin, how then can we continue to live in sin. Just because grace abounds and we can come to God every time we sin and receive forgiveness from Him, that does not give us the right to continue in our old ways. We also learn in 2 Corinthians 5:17 that we are a new creation, the old things have passed away. We no longer have to live in that old sin nature because the old man has died at the cross with Jesus. He has made us new.
Let us never be put into a place where we sin thinking we can just ask for forgiveness later. If we died to sin, why should we continue to live in it?