King James Version (KJV)
Their quiver {is} as an open sepulchre, they {are} all mighty men.
Modern English
Their quiver is an open tomb. They are all mighty men.
Hebrew
אַשְׁפָּת֖וֹ כְּקֶ֣בֶר פָּת֑וּחַ כֻּלָּ֖ם גִּבּוֹרִֽים׃
ʾashpatvo kqeber patvḥa kulam gibvoriym