"And all this assembly shall know that the LORD saveth not with sword and spear: for the battle [is] the LORD'S, and he will give you into our hands." And it came to pass, when the Philistine arose, and came and drew nigh to meet David, that David hasted, and ran toward the army to meet the Philistine..." -1 Samuel 17:47-48
The two books of Samuel form a basic foundational study in the Old Testament. An understanding of this basic history is essential, not only to understanding the Old and New Testaments, but in gaining a valid perspective of eschatological issues as well.