Many, many songs and hymns that we sing in our churches were from "street" songs that people changed when they came to know Jesus Christ.
One such hymn is A MIGHTY FORTRESS IS OUR GOD. The good music was kept, the "yucky" words were thrown out, and something beautiful was made out of something ugly.
When we know Him, this is exactly what happens in our lives. He makes something beautiful from something ugly, something that's been separated from Him. We begin to wear the righteousness of Jesus Christ and we're not anymore controlled by our own limitations.
Reverend Robert W. & Mary C. Butler