1 Samuel 17:37-39
37 The Eternal One, who saved me from the paw of the lion and the paw of the bear, will save me from the hand of this Philistine.
Saul: Go then, and may the Eternal One be with you!
38 So Saul outfitted David in the king’s own armor: a bronze helmet to protect his head and a coat of mail to protect his chest. 39 David strapped on Saul’s sword outside the armor and then discovered he could not move because he was not used to the restrictions of the weighty armor.
David: I’m not used to these things. How can I attack an enemy when I can’t even walk? So he removed every bit of Saul’s armor. He would fight the Philistine as he had fought those lions and bears.