elisabeth

from Easton's 1897 Bible Dictionary
Elisabeth
God her oath, the mother of John the Baptist (Luke 1:5). She was
a descendant of Aaron. She and her husband Zacharias (q.v.)
"were both righteous before God" (Luke 1:5, 13). Mary's visit to
Elisabeth is described in 1:39-63.
    
from Hitchcock's Bible Names Dictionary (late 1800's)
Elisabeth, Elizabeth, the oath, or fullness, of God
    

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