I Have Given You a Potent Weapon

I have given you a potent weapon
Like stone and sling with which to smite
Use it in the Name of the Son
And fight in the power of My might. 

The armour may look ridiculous 
But through it will come great victory. 
Yes, I will do the miraculous
That would birth a great testimony. 

Do you know God still uses foolish things 
To confound those who are wise?
He created, spurn into being great things
From nothing, chaos and great demise.

⁴⁵   Then said David to the Philistine, Thou comest to me with a sword, and with a spear, and with a shield: but I come to thee in the name of the LORD of hosts, the God of the armies of Israel, whom thou hast defied.

⁴⁶   This day will the LORD deliver thee into mine hand; and I will smite thee, and take thine head from thee; and I will give the carcases of the host of the Philistines this day unto the fowls of the air, and to the wild beasts of the earth; that all the earth may know that there is a God in Israel.

⁴⁷   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.

⁴⁸   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.

⁴⁹   And David put his hand in his bag, and took thence a stone, and slang it, and smote the Philistine in his forehead, that the stone sunk into his forehead; and he fell upon his face to the earth.

⁵⁰   So David prevailed over the Philistine with a sling and with a stone, and smote the Philistine, and slew him; but there was no sword in the hand of David.

1Sam17:46-50