John 10:11-13 (King James Version)
I am the good shepherd: the good shepherd giveth his life for the sheep.
But he that is an hireling, and not the shepherd, whose own the sheep are not, seeth the wolf coming, and leaveth the sheep, and fleeth: and the wolf catcheth them, and scattereth the sheep.
The hireling fleeth, because he is an hireling, and careth not for the sheep.
From the Amplified:
I am the Good Shepherd. The Good Shepherd risks and lays down His [own] life for the sheep.
But the hired servant (he who merely serves for wages) who is neither the shepherd nor the owner of the sheep, when he sees the wolf coming, deserts the flock and runs away. And the wolf chases and snatches them and scatters [the flock].
Now the hireling flees because he merely serves for wages and is not himself concerned about the sheep [cares nothing for them].
From The Message:
"I am the Good Shepherd. The Good Shepherd puts the sheep before himself, sacrifices himself if necessary. A hired man is not a real shepherd. The sheep mean nothing to him. He sees a wolf come and runs for it, leaving the sheep to be ravaged and scattered by the wolf. He's only in it for the money. The sheep don't matter to him.