Meaning :elisabeth how to a girl's name is of hebrew origin, and the importance of isabel "god is my oath". biblically: the spelling of elizabeth used in the new testament, that of elisheva. the name of the mother of john the baptist. it comes from the same root, as elisheba, the name of the wife of aaron. the name may have been influenced by the hebrews shabbâth "day of rest".,god is my oath,god is my oath; god's promise,god promised