Authority represents God's protection. It is the umbrella that keeps us from getting wet by the storms of life. When we step out from under the umbrella of authority, we automatically step into Satan's territory where we will always get rained on. If so, you are in rebellion, and you are also in great danger. It comes straight out of the pit of hell and will take you straight to hell if you do not confess your sin and repent of it.
Rebellion is what caused the fall of Lucifer.
He refused to submit to God's authority and wanted his own way. The key factor in determining whether or not you are in rebellion is the motive of your heart. For instance, a wife can sincerely desire to submit to her husband, but if he asks her to do something morally wrong, she is not in rebellion when she refuses to obey him. Although outwardly she disobeys his request, inwardly her heart motive is pure. You are playing with fire that will lead to eternal fire if you don't confess your sin and change your ways.