“Most assuredly, I say to you, he who does not enter the sheepfold by the door, but climbs up some other way, the same is a thief and a robber. 2 But he who enters by the door is the shepherd of the sheep. 3 To him the doorkeeper opens, and the sheep hear his voice; and he calls his own sheep by name and leads them out. 4 And when he brings out his own sheep, he goes before them; and the sheep follow him, for they know his voice. 5 Yet they will by no means follow a stranger, but will flee from him, for they do not know the voice of strangers.” 6 Jesus used this illustration, but they did not understand the things which He spoke to them. – John 10:1-6.
A false shepherd does not enter the sheepfold by the door but climbs in another way. Such is a thief and robber. The sheep do not recognize him nor obey him but flees from him.
This was a powerful message to the Jewish religious leaders who considered themselves to be the shepherds of God’s flock but did not have the people’s best interests in mind. They burdened the people with their own teachings and rituals and failed to impart the true knowledge of God’s word to the flock. They failed to understand Jesus’ message about Himself and them.