The definite form of the Aramaic word for “father” (lit., “the father”), properly translated as “my father” or “our father.” Used by Jesus (and early Christians) to address God (Mark 14:36; Rom 8:15; Gal 4:6), the word suggests familial intimacy. Many scholars find indications of such use in ancient Judaism, but others argue that it originated with Jesus.
36He said, “Abba, Father, for you all things are possible; remove this cup from me; yet, not what I want, but what you want.”
15For you did not receive a spirit of slavery to fall back into fear, but you have received a spirit of adoption. When we cry, “Abba! Father!”
6And because you are children, God has sent the Spirit of his Son into our hearts, crying, “Abba! Father!”