在古代，投石器是一種非常重要的武器，甚至還有專門的投石兵部隊。他們能夠精準地擊中遠距離的目標。達味戰勝哥肋雅的故事最令人驚訝的，不僅是這位年輕戰士的戰術智慧，更重要的是他對天主的全然信賴。達味做了充分的準備，但他信賴的是上主，而不是自己的準備。他讓自己被上帝引領。直到今天，這依然是教會繼續存在持續奇蹟的泉源。

In ancient times, the sling was a very important weapon, and there were specialized troops of slingers. They were capable of hitting targets with great precision even at considerable distances. What should surprise us in the story of David's victory over Goliath is the young warrior's tactical intelligence, but above all his complete trust in God. David prepared well, but he placed his trust in God, not in his preparation. He allowed himself to be led by God. This, to this day, allows the continuing miracle of the life of the Church.