Ἀββᾶ

And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father.

And he said, Abba, Father, all things are possible unto thee; take away this cup from me: nevertheless not what I will, but what thou wilt.

For ye have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, Abba, Father.