Summary: We all face very difficult situations from time to time. The story of David versus Goliath helps us learn how to handle these situations.
When You Face A Giant Problem
 David fastened his sword to his armor and tried to walk, for he had not tested them. And David said to Saul, "I cannot walk with these, for I have not tested them." So David took them off.
40 Then he took his staff in his hand; and he chose for himself five smooth stones from the brook, and put them in a shepherd's bag, in a pouch which he had, and his sling was in his hand. And he drew near to the Philistine.
41 So the Philistine came, and began drawing near to David, and the man who bore the shield went before him.
42 And when the Philistine looked about and saw David, he disdained him; for he was only a youth, ruddy and good-looking.
43 So the Philistine said to David, "Am I a dog, that you come to me with sticks?" And the Philistine cursed David by his gods.
44 And the Philistine said to David, "Come to me, and I will give your flesh to the birds of the air and the beasts of the field!"
45 Then 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 the LORD of hosts, the God of the armies of Israel, whom you have defied.
46 "This day the LORD will deliver you into my hand, and I will strike you and take your head from you. And this day I will give the carcasses of the camp of the Philistines to the birds of the air and the wild beasts of the earth, that all the earth may know that there is a God in Israel.
47 "Then all this assembly shall know that the LORD does not save with sword and spear; for the battle is the LORD's, and He will give you into our hands."
48 So it was, when the Philistine arose and came and drew near to meet David, that David hurried and ran toward the army to meet the Philistine.
49 Then David put his hand in his bag and took out a stone; and he slung it and struck the Philistine in his forehead, so that the stone sank into his forehead, and he fell on his face to the earth.
50 So David prevailed over the Philistine with a sling and a stone, and struck the Philistine and killed him. But there was no sword in the hand of David.
51 Therefore David ran and stood over the Philistine, took his sword and drew it out of its sheath and killed him, and cut off his head with it. And when the Philistines saw that their champion was dead, they fled.
The story of David and Goliath is one of
the best known Bible stories.
Everyone loves a story where the underdog wins against all odds.
The 1986 movie Hoosiers includes a final scene
where a small-town high school basketball team
takes on a big-city team for the Indiana state championship.
Before the small-town team from "Hickory" takes the court,
the preacher says to the team, "David took a stone from the bag and slung it.... knocking the Philistine to the ground."
As we examine the story of David and Goliath,
let's begin by looking at the setting and the characters.
The Bible says, 1 Now the Philistines gathered their armies together to battle, and were gathered together at Sochoh, which belongs to Judah; they encamped between Sochoh and Azekah, in Ephes Dammim.
 And Saul and the men of Israel were gathered together, and they encamped in the Valley of Elah, and drew up in battle array against the Philistines.
 The Philistines stood on a mountain on one side, and Israel stood on a mountain on the other side, with a valley between them.
The Valley of Elah was a big canyon.
It was about a mile wide with a small streambed
in the middle of the canyon,
where David found his 5 smooth stones.
On one slope half-a-mile from the center of the valley
stood the army of Israel.
1 mile away on the other slope was the army of the Philistines.
Point #1. Sometimes in life we have to face giant problems.
 And a champion went out from the camp of the Philistines, named Goliath, from Gath, whose height was six cubits and a span.  He had a bronze helmet on his head, and he was armed with a coat of mail, and the weight of the coat was five thousand shekels of bronze.
 And he had bronze armor on his legs and a bronze javelin between his shoulders.  Now the staff of his spear was like a weaver's beam, and his iron spearhead weighed six hundred shekels; and a shield-bearer went before him.