1 Samuel 25:13

25:13 Then David instructed his men, “Each of you strap on your sword!” So each one strapped on his sword, and David also strapped on his sword. About four hundred men followed David up, while two hundred stayed behind with the equipment.

1 Samuel 17:39

17:39 David strapped on his sword over his fighting attire and tried to walk around, but he was not used to them. David said to Saul, “I can’t walk in these things, for I’m not used to them.” So David removed them.