What a sad mockery has been made of the sanctifying work of the Holy Spirit in producing Christ-likeness.  Many a church has taken over this purifying work by establishing a list of regulations to abide by.  Even more insidious is the failure to identify lack of fruit as evidence of a branch not being connected to the vine.  Arturo Azurdia handles these questions beautifully in a two part exposition of John 15:4-8.  I highly commend it to you.