Habergeon Not a weapon, but protection, defense: an Old English word for Breastplate. It is properly a “coat of mail”.
Description of Habergeon or coat of mail:
Exodus 28:32 And there shall be an hole in the top of it, in the midst thereof: it shall have a binding of woven work round about the hole of it, as it were the hole of an habergeon, that it be not rent.
Exodus 39:23 And there was an hole in the midst of the robe, as the hole of an habergeon, with a band round about the hole, that it should not rend.
Goliath was armed to the teeth:
1 Samuel 17:5 And he had an helmet of brass upon his head, and he was armed with a coat of mail; and the weight of the coat was five thousand shekels of brass.
King Saul tried to prepare David:
1 Samuel 17:38 And Saul armed David with his armour, and he put an helmet of brass upon his head; also he armed him with a coat of mail.
King Uzziah prepares his warriors for Battle: see vs 12-13
2 Chronicles 26:14 And Uzziah prepared for them throughout all the host shields, and spears, and helmets, and habergeons, and bows, and slings to cast stones.
As Nehemiah is having the Walls rebuilt:
Nehemiah 4:16 And it came to pass from that time forth, that the half of my servants wrought in the work, and the other half of them held both the spears, the shields, and the bows, and the habergeons; and the rulers were behind all the house of Judah.