This Syriac or Chaldee word is found three times in the New
Testament (Mark 14:36; Rom. 8:15; Gal. 4:6), and in each case is
followed by its Greek equivalent, which is translated "father."
It is a term expressing warm affection and filial confidence. It
has no perfect equivalent in our language. It has passed into
European languages as an ecclesiastical term, "abbot." Bibliography Information Easton, Matthew George. M.A., D.D., "Biblical Meaning for 'Abba' Eastons Bible Dictionary". bible-history.com - Eastons; 1897.