Abba is a Syriac or Chaldee word meaning “Father.” It expresses warm affection, filial confidence, and direct address to God. Because no single English word fully conveys its force, the original term is retained in the New Testament alongside its Greek equivalent, “Father.”
Abba occurs in Mark 14:36, Romans 8:15, and Galatians 4:6. Jesus uses it in prayer, and it appears in the language of believers’ relationship with God through the Spirit, expressing filial confidence and affectionate dependence.
The term was used in Jewish and early Christian prayers. It later entered European languages as an ecclesiastical term, “abbot,” and in Eastern churches became a title for bishops and patriarchs.