Breaking the strong holds

Verily,verily,I say unto you,He that entereth not by the door into the sheepfold,but climbeth up some other way,the same is a thief and a robber.But he that entereth in by the door is the shepherd of the sheep.To him the porter openeth;and the sheep hear his voice:and he calleth his own sheep by name,and leadeth them outAnd when he putteth forth his own sheep,he goeth before them,and the sheep follow him;for they know his voice.And a stranger will they not follow,but will flee from him:for they know not the voice of strangers.