Strong's Concordance H8423

Original Word: תּוּבַל קַיִן
Transliteration: Tûwbal Qayin
Phonetic Spelling: too-bal' kah'-yin
apparently from H2986 (compare H2981) and H7014; offspring of Cain; Tubal-Kajin, an antidiluvian patriarch; Tubal-cain.

Usages throughout the bible

Genesis 4:22 - And Zillah, she also bare Tubalcain, H8423 an instructer of every artificer in brass and iron: and the sister of Tubalcain H8423 was Naamah.