'One Father' in the Bible

Have we not all one father? has not one God made us? why are we, every one of us, acting falsely to his brother, putting shame on the agreement of our fathers?

You are doing the works of your father. They said to him, We are true sons of Abraham; we have one Father, who is God.

For even if you had ten thousand teachers in Christ, you have not more than one father: for in Christ Jesus I have given birth to you through the good news.