1 Samuel 17:34-35

34But David said to Saul, ‘Sir, I have been a shepherd who takes care of his father's sheep. Sometimes a lion or a bear would come to take a lamb from among the sheep.

35Then I would chase after the lion or the bear. I would knock it down and I would save the lamb from its mouth. If the wild animal turned to attack me, I would take hold of its neck. Then I would hit it and kill it.