1 Samuel 17:37-39 New International Version - UK (NIVUK)
37 The Lord who rescued me from the paw of the lion and the paw of the bear will rescue me from the hand of this Philistine.’
Saul said to David, ‘Go, and the Lord be with you.’
38 Then Saul dressed David in his own tunic. He put a coat of armour on him and a bronze helmet on his head. 39 David fastened on his sword over the tunic and tried walking around, because he was not used to them.
‘I cannot go in these,’ he said to Saul, ‘because I am not used to them.’ So he took them off.