In the Bible, we read an account in I Samuel 17:38-51.
38 So Saul clothed David with his armor, and he put a bronze helmet on his head; he also clothed him with a coat of mail. 39 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.
David could not use the equipment Saul gave him to fight Goliath. They were unfamiliar to him and if he would have used them, I believe he would not have been successful in defeating Goliath.
David had to use the tools he was comfortable with. He was very familiar with using a sling shot and stones, for he had used it many times before in protecting his sheep from harm. David also knew his God and he said to Goliath, “But I come to you in the name of the Lord of hosts, the God of the armies of Israel, whom you have defied.”
The Bible also says in II Corinthians 10:3-5
For though we walk in the flesh, we do not war after the flesh: (For the weapons of our warfare are not carnal, but mighty through God to the pulling down of strong holds;) Casting down imaginations, and every high thing that exalteth itself against the knowledge of God and bringing into captivity every thought to the obedience of Christ.
We cannot use natural weapons to fight spiritual battles. The Bible says our weapons are mighty through God.
Just as David recognized he could not use unproven weapons, so too, we must recognize as Christians, our only proven weapons to fight the enemy is the name of Jesus and the word of God.
This is Leslie Eaddy Brooks, Think About It!