It started in a field with a man named Samuel, a prophet — someone God chose to speak through. He held one of the most powerful roles in all of Israel at that time. More powerful, some might say, than the king himself.
David on the other hand was a nobody. The youngest of eight brothers, the runt of the litter. When the prophet Samuel arrived at his father's home, Samuel told his father that God had sent him to anoint the next king of Israel, so Jesse lined up his sons. Seven of them. Every one of them impressive. The type of tall, strong men you probably picture when you envision a king.
David was still in the fields, tending to his sheep.
As the youngest of the family, he got the chores nobody else wanted. When Samuel looked over the seven sons of Jesse, he felt a wave of disappointment. God had told him to come here. He had said the next king of His people was waiting there, but for some reason none of these seven fit the bill.
God had told Samuel something important on his trip to Bethlehem. Don't look at how tall the man is or how handsome. Man looks at the outside appearance. God looks only at the heart.
So, Samuel asked Jesse: "Are these all of your sons?"
"Well, not exactly but you told me you were looking for a king. My son David is in the fields but he's just a boy. He tends to the sheep in the fields."
Samuel said: go get him.
In walks David, probably still stinking of sheep, and without hesitation Samuel anointed him king of Israel. No interview. No test of faith. God spoke to Samuel and Samuel listened. Oh how jealous his older brothers must have been, and how confused his father!
David didn't get a crown yet though. He remained a shepherd. There was still, after all, a king sitting on the throne named Saul who had no plans to hand over his crown. He had his own sons. They would take the throne after his death. Or so he thought.
Years later, David is still waiting in the fields, protecting his sheep. Three of his older brothers are serving in Saul's army, and Jesse asks David to bring them food and check in on them at the battlefield. The future king of Israel, anointed by the prophet, and his dad still sent him along like a DoorDash driver.
David did what his father told him. He went to the battlefield to see his brothers.
Then he hears the noise. Goliath, standing in a field, calling out that he will destroy God's army of Israelites. Every last one of them.
Now, Goliath was not a normal-sized problem. He was a literal giant, standing somewhere around nine feet tall. His armor alone weighed about 125 pounds. His spear was basically a telephone pole with a fifteen-pound iron tip. He had been coming out twice a day for forty days yelling out the same challenge: send your best man, we fight, winner takes the whole war and becomes the others' slaves.
Forty days. Israel's answer was silence.
David's older brother Eliab saw him from a long way off and started giving him the typical grief of an older brother to his younger. What are you doing here? You came to watch, didn't you? David barely heard him. All he could hear was Goliath. He had one question for his brother: who was this man, screaming insults at David's people and insults at their God. More importantly, why has no one yet shut him up?
Shut him up? His brothers must have laughed. You want to fight that giant? We're all set.
David didn't hesitate. King Saul called for him — they knew each other because David was a musician who sang and played for the king on occasion. David went to the king.
David entered the king's tent, everyone inside probably thinking that he was there to play music. But no. He looked the king in the eyes and said: don't let anyone be afraid of this man. I'll fight him.
Saul, like David's brothers, tried to talk him out of it. You're just a boy. This man has been a soldier his entire life, and he's not just any ordinary soldier. He's a giant!
Now, David wasn't a fool. At that moment, he wasn't just saying he'd fight the man out of pride. He was a shepherd. A shepherd who often had to protect his sheep from wild animals in the desert of Israel. He tells Saul this isn't his first rodeo. He tells him of the times he's had to protect his sheep from lions and bears. He grabbed a lion by its beard and struck it down for trying to take one of his sheep. God had protected him then. God would protect him now.
It must have been a good argument because Saul agreed. He even gave David the king's own armor to wear into battle. Helmet. Coat of bronze. Sword. The whole outfit.
David took a few steps in the armor and gave it back. He couldn't even walk in it. Instead, he went to a nearby stream, picked up five smooth stones, put them in his shepherd's bag, and picked up his sling.
That was his plan.
You've probably heard this story before and thought "a boy with a rock, threw it at a giant, and knocked him dead? Yeah, okay buddy." But what you probably don't know is that the sling David had was a true weapon. Look up videos sometime of people using these very slings. David wasn't walking into the fight with a wing and a prayer. He was walking in with a loaded weapon. But he only had five shots. If he missed, he'd still be torn to pieces by the giant.
Goliath saw this boy walking out of the field and was genuinely insulted. After forty days of asking for a champion to fight, he gets an unarmored shepherd boy carrying a shepherd's stick. Am I a dog that you come at me with a stick? He started cursing David, threatening to feed him to the birds after he was done with him.
David answered him. And this is the line that matters.
"Whom you have defied." David had heard the insults Goliath had thrown at the God he loved. Goliath called his God fake, and said he'd prove it by destroying his army. Think of the person you love most in the world. Imagine someone insulting them right in front of you while your brave older brothers stood by silent. David wasn't just ready to fight. He was furious.
So he ran. Not walked. Ran.
He reached into his bag, loaded the sling, and let that smooth rock from the stream fly. The stone hit Goliath square in the forehead. The biggest man anyone had ever seen dropped like a sack of potatoes to the dirt. Dead. David walked the rest of the way to him, took Goliath's own sword, and finished the job.
The Philistine army saw this, turned, and ran.
What came after was one of the greatest friendships in the entire Bible. Jonathan, the son of King Saul, next in line for the throne of Israel, saw what David did and immediately loved him like a brother. He gave David his own robe, his sword, his bow. He was basically saying, what you just did makes you more worthy of this than me. I stood here for forty days. You were here for ten minutes and already had the courage to fight him. Everything I have is yours. That is how much the moment meant to him.
David went on to become the greatest king Israel ever had. He was also, at various points, a fugitive, a failure, and someone who made mistakes so bad that they followed him for the rest of his life. He was far from perfect. But what set David apart from those failures was what he did afterward. He kept coming back. Every single time. He wrote some of the most honest prayers ever recorded, the Psalms, including the one you have almost certainly heard:
I know that prayer well. It's my absolute favorite and I said it before every football game I played in high school. I even have it tattooed above my heart.
A shepherd who became a king who never forgot what it felt like to be alone with just God and the sheep. That is the man who wrote that prayer. God called him a man after His own heart. Not because he never fell. But because he never stopped getting back up.
