The battle belongs to Yahweh

45Then David said to the Philistine, “You come to me with a sword, with a spear, and with a javelin, but I come to you in the name of Yahweh of Armies, the God of the armies of Israel, whom you have defied.”

46This day Yahweh will deliver you into my hand, and I will strike you down and remove your head from you. And this day I will give the corpses of the Philistine camp to the birds of the sky and to the wild animals of the earth, so that all the earth may know that there is a God for Israel.

47and all this assembly will know that Yahweh does not save by sword or by spear; for the battle belongs to Yahweh, and he will give you into our hand.