1 Samuel 17:34-35

17:34 David replied to Saul, “Your servant has been a shepherd for his father’s flock. Whenever a lion or bear would come and carry off a sheep from the flock, 17:35 I would go out after it, strike it down, and rescue the sheep from its mouth. If it rose up against me, I would grab it by its jaw, strike it, and kill it.

Luke 15:4-6

15:4 “Which one of you, if he has a hundred sheep and loses one of them, would not leave the ninety-nine in the open pasture and go look for the one that is lost until he finds it? 15:5 Then when he has found it, he places it on his shoulders, rejoicing. 15:6 Returning home, he calls together his friends and neighbors, telling them, ‘Rejoice with me, because I have found my sheep that was lost.’

John 10:11-12

10:11 “I am the good shepherd. The good shepherd lays down his life for the sheep. 10:12 The hired hand, who is not a shepherd and does not own sheep, sees the wolf coming and abandons the sheep and runs away. So the wolf attacks the sheep and scatters them.