King James Version (KJV)
They shall roar together like lions: they shall yell as lions' whelps. {yell: or, shake themselves}
Modern English
They will roar together like young lions. They will growl as lions’ cubs.
Hebrew
יַחְדָּ֖ו כַּכְּפִרִ֣ים יִשְׁאָ֑גוּ נָעֲר֖וּ כְּגוֹרֵ֥י אֲרָיֽוֹת׃
yaḥdav kakpiriym yishʾagv naʿarv kgvorey ʾarayvot