Cubit—a Measure Of Distance (the Forearm), Roughly 18 In (.5m). There Are Several Cubits Used In The Old Testament, The Cubit Of A Man Or Common Cubit (Deuteronomy 3:11), The Legal Cubit Or Cubit Of The Sanctuary (Ezekiel 40:5) Plus Others. See A Bible Dictionary For A Complete Treatment. in Hebrew Bible אַמָּה