The Armor Is Individually Made
I had the following come to me while I was reposting a blog from several years ago.
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.
You must put on your own armor. You cannot use another believers armor to fight battles you are involved in. Yes we are all in the fight against evil together, however, we must individually put on our own armor.