Commemoration of Ignatius of Loyola, Founder of the Society of Jesus, 1556 Jesus used the term abba (which means father or "daddy" in his Aramaic mother tongue), as an address in his prayers to God. There are no other examples of this usage in contemporary Judaism, but Jesus always addressed God in this way. The others perhaps regarded it as child's talk, a form of expression too disrespectful to be so used. But for Jesus, abba expressed the filial intimacy he felt toward his Father. As the divine Son of the Father, Jesus enjoyed a unique relationship with him, and his mission in the world consisted in opening up the blessings of sonship to those who believe.