Okay, well I believe the meaning to this song is being tempted but isn't giving in
thus being supported is "I wish to turn around and return (to her warmth and laughter), but this calling is strong, and denial is impossible."
When you live the life of a sinner you can pretty much do whatever you want, but when youre changed, you have a calling to do better and follow the footsteps of christ. If you ask anyone that is truly saved, they will tell you that they have met no sweeter love then the love of jesus
the next quote is talking about how being a sinner was great and all, but being saved has no comparason
"To the road, your freedom is awesome, but does it compare to the sweet embrace of my love?"