'Forefather' in the Bible

and didst say through the Holy Spirit by the lips of our forefather David Thy servant, "'Why have the nations stamped and raged, and the peoples formed futile plans?

The reply of Stephen was, "Sirs--brethren and fathers--listen to me. God Most Glorious appeared to our forefather Abraham when he was living in Mesopotamia, before he settled in Haran,

He caused to spring from one forefather people of every race, for them to live on the whole surface of the earth, and marked out for them an appointed span of life and the boundaries of their homes;