1 Samuel 17:34,35

There came a lion and a bear Not both together, but at different times. I went out after him I pursued the beast. When he arose against me Turned again upon me; I caught him by his beard I had resolution and strength enough given me to close with him, and, catching him by the hair of his beard, smote and killed him on the spot. David does not say with what instrument he did this; but probably it was with a sword or spear. It is not improbable but in that age, and in those countries, it was usual to pursue, with proper arms, those wild beasts that came to devour their flocks. And travellers tell us, that, at this day, a single Arab, that is properly instructed and armed, will pursue a lion, and, if he overtakes him, will overcome him. But that such a youth as David should have such extraordinary courage and strength cannot be accounted for but by supposing, as the Scriptures inform us, that the Spirit of the Lord was upon him, and that God intended by these things to train him up and fit him for the greater things he was to be called to perform.