Shocking thought. Only one way to sin? That thought is so incredulous that God sent His Spirit to help us grasp exactly what that sin is and the import of the same. Ready to know what that sin is?
8 And when he comes, he will reprove the world of sin...9 Concerning sin, because they do not put their trust in me; John 16:8a-9 (DLT)
That makes it simple, to distrust Jesus is sin. To trust Jesus is righteous, peace, and joy in the Holy Spirit. Or, being at peace with God, self, and that other fellow. To continue distrusting Jesus is to continue distrusting self, God, and that other fellow. How has that worked out for you so far?