Im not saying that you wont sin again......what im saying is if the holy spirit convicts you befor you sin and warns you not to and you ignor it and sin,,,,,, your either possessed or your not walking right.. either of which there is still forgivness only i dont know about the spirit led person who does this what his or her punishment may be and not nesacarily hell..
However i think its a stern warning not to say something bad when your being told not to.
What can happen is the enemy will keep on attacking you if he sees a christian singing for to long he will attack you... especialy if its a calling song the enemy hates that. hes real peter and verry powerfull mate you need to know how to handle it..